Basic ideas of secure communication (both classical and quantum) will be briefly reviewed with a focus on the recent achievements. Stress will be given on the physical origin of unconditional security which is a desirable feature of secure communication, but cannot be achieved in the classical world. The talk will start with the discussion on quantum key distribution and we will gradually introduce the quantum protocols for the other cryptographic tasks like, key agreement, quantum secure direct communication, e-commerce, e-auction, and voting. Relationship between the quantum computation and quantum communication will be explored in light of a set of secure multi-party computation (SMC) tasks and the potential hacking strategies. In this context some introduction to the recent developments in quantum computation and post-quantum cryptographic schemes will also be provided. About the speaker: Prof. Anirban Pathak is a theoretical physicist. He did his Ph.D. from Visva Bharati, Santiniketan, India. Subsequently, he was a post-doctoral fellow in the Freie University, Berlin. He joined JIIT, Noida in 2002. At present he is actively involved in teaching and research related to several aspects of quantum optics and quantum information. He is a member of National Academy of Science, India (NASI) and several other professional bodies. He is a visiting scientist at Palacky University, Czech Republic. Earlier, he was an associate of Indian Institute of Mathematical Science (IMSc), Chennai, India. He guided 4 PhD students and at present he leads a research group focused on quantum optics and quantum information. The group has 2 post-docs, 4 PhD students and couple of project students. He has also completed two DST funded projects and has also refereed for several journals of international repute, e.g., Opt. Commn., Phys. Lett. A, J. Phys. A., J. Phys. B., Laser Phys., J. Mod. Quant. Infor. Proces., Opt., Int. J. Quant. Infor. , Quant. Infor. Commn., Int. J. Theor. Phys., Scientific Reports, etc. He has active research collaboration with different research groups in India, Czech Republic, Poland, Canada, Germany, Japan, Malaysia, and Argentina.
Views: 47 Webcast IIITD
Sarah Croke, a postdoctoral fellow at Waterloo's Perimeter Institute for Theoretical Physics, lectures at the Institute for Quantum Computing on how to extract a secure key in Quantum Key Distribution systems. The lecture was part of the Quantum Cryptography School for Young Students (QCSYS) 2011. For information on attending QCSYS 2012, visit http://iqc.uwaterloo.ca/conferences/qcsys2012/qcsys-home iqc.uwaterloo.ca Twitter: @QuantumIQC www.facebook.com/QuantumIQC quantumfactory.wordpress.com http://iqc.uwaterloo.ca/conferences/qcsys2011/qcsys-home
Views: 1461 Institute for Quantum Computing
.Sarah Croke, a postdoctoral fellow at Waterloo's Perimeter Institute for Theoretical Physics, lectures at the Institute for Quantum Computing on entanglement-based protocols for quantum key distribtuion. The lecture was part of the Quantum Cryptography School for Young Students (QCSYS) 2011. For information on attending QCSYS 2012, visit http://iqc.uwaterloo.ca/conferences/qcsys2012/qcsys-home iqc.uwaterloo.ca Twitter: @QuantumIQC www.facebook.com/QuantumIQC quantumfactory.wordpress.com
Views: 671 Institute for Quantum Computing
IQC postdoctoral fellow Krister Shalm lectures on the concepts and science behind quantum optics. The lecture was part of the Quantum Cryptography School for Young Students (QCSYS) 2011. For information on attending QCSYS 2012, visit http://iqc.uwaterloo.ca/conferences/qcsys2012/qcsys-home iqc.uwaterloo.ca Twitter: @QuantumIQC www.facebook.com/QuantumIQC quantumfactory.wordpress.com
Views: 7712 Institute for Quantum Computing
Mark Wilde, Postdoctoral Fellow at McGill University, lectures on quantum information theory. The lecture is the first of two parts, and was filmed at the Canadian Summer School on Quantum Information, held at the University of Waterloo in June of 2012. Find out more about IQC! Website - https://uwaterloo.ca/institute-for-quantum-computing/ Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
Views: 5902 Institute for Quantum Computing
Scott Aaronson, a former IQC postdoctoral fellow, talks about his research interests at MIT - quantum computing and computational complexity theory. He's working to discover the limits of the quantum computer, citing np complete problems as an example. Find out more about IQC! Website - https://uwaterloo.ca/institute-for-quantum-computing/ Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
Views: 5594 Institute for Quantum Computing
[Keio Spintronics Network - Ohno Laboratory , Tohoku University] In the Laboratory for Nanoelectronics and Spintronics at Tohoku Universitys Research Institute of Electrical Communication, Hideo Ohnos group is working to interpret the quantum mechanical aspects of spintronics and find applications for them. Many of the semiconductor devices used in current electronics are nonmagnetic, and show little effect as magnets. But in non-magnetic semiconductors, the quantum effects of spin become prominent. The researchers aim to control these effects, and utilize them to develop new forms of IT and quantum computers. Q. With semiconductors, its usual to make integrated circuits. But what our group is doing is to turn semiconductors into magnets, and utilize electrical effects and spin effects in the semiconductors together. Theres no need for the materials to be semiconductors, but were using them to seek a new paradigm: controlling electrical effects using magnets, and controlling magnetic effects using electrical systems. The spin in nonmagnetic semiconductors, especially the nuclear spin, is known to maintain the quantum mechanical phase coherence for a long time. In Hideo Ohnos group, Associate Professor Yuzo Ohno is detecting the quantum mechanical aspects of spin in semiconductors through highly sensitive methods using light. These methods are called transmission time-resolved pump-probe and time-resolved Faraday and Kerr rotation. In this way, Yuzo Ohno works to understand the spin-dependent properties of the materials and find applications for them. Q. Spin is a quantum-mechanical physical property. If such quantum-mechanical states can be maintained for a long time, the up and down directions of spin can be used as 1 and 0 in computers. Theres also a state where the 1 and 0 states are superposed. If such states can be used as resources, then we hope that, for example, we can apply them in devices that form the basis for new forms of IT, such as quantum computing or quantum communication. Spintronics technology is expected to lead to next-semiconductor devices that use quantum information. Many young researchers have sensed potential in spintronics, and are taking part in this R&D. Q. Whereas a flow of electrical charge is called a electrical current, a flow of electron spin is called a spin current. This has become topical recently. Although the concept of spin current is still new, if it can be utilized, we hope that devices with entirely new functions will become possible. Q. When you shine circular polarized laser light in a non-magnetic semiconductor, this generates electrons with their spins aligned. Then an interaction between the electron spins and nuclear spins align the nuclear spins at high degrees of the polarization. The orientations of the aligned nuclear spins can be changed freely, by instantaneously applying a magnetic field from outside. Moreover, the nuclear spins act on the electron spins as an effective magnetic field, which changes the precession of electron spins. This enables us to detect nuclear spin states, with high sensitivity, through electron spins. Professor Hideo Ohno considers that progress in science and technology depends not only on results, but also on growth of the young researchers who will support future development. Q. We offer not just research, but also training. The word training suggests deliberately making something, but here, training means that you become a member of the group, which includes students, postdocs, and staff. While working in a friendly team, our students get to truly understand what it means to do world-class research in science and technology. This process trains people to work together, and also to compete while coordinating with each other. I really hope people will understand and support the way that training works in this kind of environment.
Views: 3532 慶應義塾Keio University
Peter McMahon, QC Ware Corp, presents and overview of the quantum computing hardware landscape to attendees of the Quantum for Business 2018 conference, an annual conference hosted by QC Ware. Recorded sessions and conference details can be found at: https://q2b2018.qcware.com/ More information on QC Ware can be found at: https://qcware.com/ Subscribe to the QC Ware mailing list at: https://qcware.com/contact Peter McMahon, QC Ware Corp, is a postdoctoral researcher in Applied Physics at Stanford University. His background is in high-performance computing and quantum information science, and he holds a Ph.D. in Electrical Engineering from Stanford.
Views: 124 QC Ware
Scott Aaronson, Associate Professor of Electrical Engineering and Computer Science at MIT, delivered his inaugural lecture entitled "Quantum Computing and the Limits of the Efficiently Computable". Mr Aaronson discusses what can and can't be feasibly computed according to physical law. He argues that this is a fundamental question, not only for mathematics and computer science, but also for physics; and that the infeasibility of certain computational problems (such as NP-complete problems) could plausibly be taken as a physical principle, analogous to the Second Law or the impossibility of superluminal signalling. He first explains the basics of computational complexity, including the infamous P versus NP problem and the Extended Church-Turing Thesis. Then he discusses quantum computers: what they are, whether they can be scalably built, and what's known today about their capabilities and limitations. Lastly, he touches on speculative models of computation that would go even beyond quantum computers, using (for example) closed timelike curves or nonlinearities in the Schrodinger equation. Mr Aaronson emphasises that, even if "intractable" computations occur in a particular description of a physical system, what really matters is whether those computations have observable consequences. Biography: Scott Aaronson is an Associate Professor of Electrical Engineering and Computer Science at Massachusetts Institute of Technology (MIT). He received his PhD in computer science from University of California, Berkeley and did postdocs at the Institute for Advanced Study and the University of Waterloo. Scott's research interests center around fundamental limits on what can efficiently be computed in the physical world. This has entailed studying quantum computing, the most powerful model of computation we have based on known physical theory. He writes a blog (www.scottaaronson.com/blog), and is the creator of the Complexity Zoo (www.complexityzoo.com), an online encyclopedia of computational complexity theory. He was the recipient of NSF's Alan T Waterman Award for 2012.
Views: 9875 The University of Edinburgh
The notion of quantum walks has provided a valuable model for investigating quantum-information processing and quantum transport, and recently quantum walks have been used to simulate and study topological protection. Dr. Sanders presents recent theory and experiment in this field and aspirations to simulate quantum walks with intrinsic symmetries transcending spin and instead of manifesting SU(n) symmetries. Bio: Dr Barry Sanders is Director of the Institute for Quantum Science and Technology at the University of Calgary, a Thousand Talents Chair at the University of Science and Technology China and a Vajra Visiting Faculty member of the Raman Research Institute in India. He received his Bachelor of Science degree from the University of Calgary in 1984 and a Diploma of Imperial College supervised by Professor Sir Thomas W. B. Kibble in 1985. He completed a PhD in 1987 at Imperial College London supervised by Professor Sir Peter Knight. His postdoctoral research was at the Australian National University, the University of Queensland and the University of Waikato. Dr. Sanders was on the Macquarie University faculty from 1991 until moving to Calgary in 2003. Dr Sanders is especially known for seminal contributions to theories of quantum-limited measurement, highly nonclassical light, practical quantum cryptography and optical implementations of quantum information tasks. His current research interests include quantum resources & algorithms, optical & atomic implementations of quantum information tasks and protocols, and machine learning for quantum control. Dr. Sanders is a Fellow of the Institute of Physics (U.K.), the Optical Society of America, the Australian Institute of Physics, the American Physical Society and the Royal Society of Canada, and a Senior Fellow of the Canadian Institute for Advanced Research. In 2016 Sanders was awarded the Imperial College London Doctor of Science (DSc) degree. Dr Sanders is Editor-in-Chief of New Journal of Physics. Dr. Sanders presented on Feb. 21, 2019.
Views: 29 Stony Brook University
Recorded: 02/29/2012 CERIAS Security Seminar at Purdue University Cryptographic protocols in the era of cloud computing Nishanth Chandran, Microsoft Research With the advent of cloud computing, our view of cryptographic protocols has changed dramatically. In this talk, I will give an overview of some of the newer challenges that we face in cloud cryptography and outline some of the techniques used to solve these problems. In particular, a few questions that I will address are:1) How can we store sensitive data in the cloud, in an encrypted manner, and yet allow controlled access to certain portions of this data?2) How can we ensure reliability of data across cloud servers that may be connected by only a low-degree communication network, even when some of the servers may become corrupted?3) How can users authenticate themselves to the cloud in a user-friendly way?This talk will assume no prior knowledge of cryptography and is based on works that appear at TCC 2012, ICALP 2010 and STOC 2010. Nishanth Chandran is a post-doctoral researcher in the Cryptography group at Microsoft Research, Redmond. His research interests are in the area of cryptography, security and distributed algorithms. Nishanth has published several papers in top theory and cryptography conferences such as STOC, FOCS, Crypto, Eurocrypt, TCC and so on. He received his PhD in Computer Science from UCLA in 2011, his Masters in Computer Science from UCLA in 2007, and his Bachelors in Computer Science and Engineering from Anna University, India in 2005. Nishanth received the Dissertation Year Fellowship from UCLA and the Chorafas International Award for exceptional achievements in research in 2010. He is also a professional Indian classical violinist. (Visit: www.cerias.purude.edu)
Views: 1263 ceriaspurdue
Scott Aaronson, a former postdoctoral fellow of IQC, speaks about how in the last few years there have been more opportunities computational complexity theorists to meet with experimentalists halfway. By working with experimentalists who are playing with quantum systems, no matter how simple, it opens more channels of interaction between theorists and experimentalists. Find out more about IQC! Website - https://uwaterloo.ca/institute-for-quantum-computing/ Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
Views: 912 Institute for Quantum Computing
In this video from PASC17, Matthias Troyer from Microsoft Research presents: Towards Quantum High Performance Computing. "A century after the development of quantum mechanics we have now reached an exciting time where computational devices that make use of quantum effects can be built. Quantum random number generators, analog quantum simulators and quantum annealers are already commercially available and work on quantum computers is accelerating. First demonstration quantum computers exist today and devices with computational powers beyond that of any imaginable classical computers seem just over the horizon and feasible within the next few years. Following an introduction to the exceptional computational power of quantum computers using analogies with classical high performance computing systems, I will discuss real-world application problems that can be tackled on medium scale quantum computers but not on post exa-scale classical computers. I will motivate hardware software co-design of quantum accelerators to classical supercomputers and the need for educating a new generation of quantum software engineers with knowledge both in quantum computing and in high performance computing." Matthias Troyer is a Principal Researcher in the Quantum Architectures and Computation Group at Microsoft Research. He is a Fellow of the American Physical Society, a Trustee of the Aspen Center for Physics, and recipient of the Rahman Prize for Computational Physics of the American Physical Society. After receiving his PhD in 1994 from ETH Zurich he spent three years as postdoc at the University of Tokyo before returning to ETH Zurich. There he has been professor of Computational Physics until taking leave of absence to join Microsoft’s quantum computing program. Learn more: https://pasc17.pasc-conference.org/
Views: 667 PASC Conference
Sir Martin Wood founded Oxford Instruments in 1959 as a spin-out company to manufacture superconducting magnets for research. We find out how an Oxford researcher of quantum computation is working with the company today to create tools for tomorrow's researchers.
Views: 2867 University of Oxford
Quantum computers exploit the bizarre features of quantum mechanics to perform tasks that are impossible using conventional means. Sending instantaneous messages across long distances or quickly computing over ungodly amounts of data are just two possibilities that arise if we can design computers to exploit quantum uncertainty, entanglement, and measurement. In this SFI Community Lecture, scientist Christopher Monroe describes the architecture of a quantum computer based on individual atoms, suspended and isolated with electric fields, and individually addressed with laser beams. This leading physical representation of a quantum computer has allowed demonstrations of small algorithms and emulations of hard quantum problems with more than 50 quantum bits. While this system can solve some esoteric tasks that cannot be accomplished in conventional devices, it remains a great challenge to build a quantum computer big enough to be useful for society. But the good news is that we don’t see any fundamental limits to scaling atomic quantum computers, and Monroe speculates as to how this might happen. Christopher Monroe is a leading atomic physicist and quantum information scientist. He demonstrated the first quantum gate realized in any system at the National Institute of Standards and Technology (NIST) in the 1990s, and at University of Michigan and University of Maryland he discovered new ways to scale trapped ion qubits and simplify their control with semiconductor chip traps, simplified lasers, and photonic interfaces for long-distance entanglement. He received the American Physical Society I.I. Rabi Prize and the Arthur Schawlow Laser Science Prize, and has been elected into the National Academy of Sciences. He is Co-Founder and Chief Scientist at IonQ in College Park, MD.
Views: 1020 Santa Fe Institute
Pierre Meystre Editor in Chief American Physical Society Following its discovery, the quantum became central to our quest for a fundamental understanding of nature, from the structure of atoms and light to the Standard Model of particle physics, and beyond. As we learned how to tame, and increasingly how to domesticate the quantum, this also resulted in a technological `Quantum Revolution’ with a profound impact on our lives. This goes from the utterly devastating – with the invention of weapons capable of destroying civilization in the blink of an eye, to the most empowering – from medical imaging to the GPS, from the transistor to the laser, and from the internet to the smart phone. Following a brief review of these developments the lecture will focus on a more counter-intuitive aspect of quantum reality, what Einstein called “spooky action at a distance.” I will discuss how worldwide efforts at domesticating this elusive quantum attribute may lead to a `Second Quantum Revolution,’ with much promise for quantum communications, quantum metrology and quantum computing.
Views: 4537 The University of Arizona
Science on Tap is for science lovers (and novices) in the community who want to enjoy good beverages, good food, and fascinating conversation. This episode features Matt Leifer Ph.D.! Matt Leifer is an Assistant Professor of Physics at the Schmid College of Science and Technology at Chapman University, and a member of the Institute for Quantum Studies who had a beer with Dean Andrew Lyon of the Schmid College of Science and Technology at Chapman University https://www.chapman.edu/scst/index.aspx
Views: 112 Chapman University
Advanced Networks Colloquium: Babis Papamanthou, "Do You Trust Your Cloud?" Friday, November 18, 2016 11:00 a.m. 1146 AV Williams Building Do You Trust Your Cloud? Verifiability, Accountability and Privacy for Remote Storage and Computation Abstract In the age of big data, cloud computing plays a major role in processing and analyzing massive amounts of information. Services like Amazon S3 and EC2 offer easily accessible outsourced storage and computation, gradually replacing our local hard drives and desktop machines. Nevertheless, many security concerns exist in this new paradigm. In an untrusted cloud setting, users' data and computations can be potentially tampered with and sensitive data could be leaked to unauthorized parties. In this talk, I will present my work that tackles the above mentioned problems through protocols and systems that offer verifiability and privacy assurances of data and computations in the cloud (or generally in untrusted environments). First, I will review some of my work on theory and systems for efficiently verifying cloud storage queries as well as more expressive queries including conjunctive and disjunctive keyword search, SQL, range search and geometric processing queries, usually appearing in information retrieval and data streaming applications. Second, I will highlight some of my recent work on cloud privacy concerning efficient, I/O-efficient and parallel searching of dynamic encrypted data and will finally talk about a private cloud-based email system (Pmail) with searching capabilities that we are developing at MC2. Biography Charalampos (Babis) Papamanthou is an assistant professor of Electrical and Computer Engineering at the University of Maryland, College Park, where he joined in 2013 after a postdoc at UC Berkeley. At Maryland, he is also affiliated with the Institute for Advanced Computer Studies (UMIACS), where he is a member of the Maryland Cybersecurity Center (MC2). He works on applied cryptography and computer security---and especially on technologies, systems and theory for secure and private cloud computing. While at College Park, he received the Google Faculty Research Award, the Yahoo! Faculty Research Engagement Award, the NetApp Faculty Fellowship, the 2013 UMD Invention of the Year Award, the 2014 Jimmy Lin Award for Invention and the George Corcoran Award for Excellence in Teaching. His research is currently funded by federal agencies (NSF, NIST and NSA) and by the industry (Google, Yahoo!, NetApp and Amazon). His PhD is in Computer Science from Brown University (2011) and he also holds an MSc in Computer Science from the University of Crete (2005), where he was a member of ICS-FORTH. His work has received over 2,000 citations and he has published in venues and journals spanning theoretical and applied cryptography, systems and database security, graph algorithms and visualization and operations research.
Views: 257 ISR UMD
This talk was presented by Christopher Fuchs on May 19, 2015 in Buenos Aires as part of the International Workshop: What is Quantum Information? Abstract: How did the field of quantum information begin? To my mind, it was when John Wheeler formed his little group of students and postdocs at the University of Texas in the early 1980s. David Deutsch (first quantum algorithms), Benjamin Schumacher (inventor of the qubit), William Wootters (no-cloning theorem, later quantum teleportation), and Wojciech Zurek (quantum decoherence) were all there. Even Richard Feynman (father of quantum computation) visited once. It was because Wheeler had a single-minded purpose. Of every student who walked into his office ---even the first-year undergraduate--- Wheeler would implore: “Give an information theoretic derivation of quantum theory!” He saw that as the only way to get true understanding of “the quantum.” In this talk, I will outline how Wheeler’s old hope is still bearing fruit in the context of Quantum Bayesianism (or QBism). Particularly, that context points naturally to a study of a mysterious structure in Hilbert space called the Symmetric Information Complete (SIC) quantum measurement. When these structures exist (and it seems they do for all finite dimensions, though no one has proven it!) they give a very clean way of writing the Born rule in purely probabilistic terms. This gives the hope that all the mathematical structure of quantum theory might be derivable from one very basic gedankenexperiment. It’s not the double-slit experiment that Feynman argued for in his Feynman Lectures, but one might still appeal to his intuition and hope, “In reality, [this new scenario] contains the only mystery [of quantum mechanics].”
Views: 1144 Grupo de Filosofía de las Ciencias
Matthias Troyer visited Google LA to speak about "High Performance Quantum Computing." This talk took place on December 2, 2014. Abstract: As the outlines of a roadmap to building powerful quantum devices becomes more concrete an important emerging question is that of important real-world applications of quantum computers. While there exist many quantum algorithms which asymptotically outperform classical algorithms, asymptotic superiority can be misleading. In order for a quantum computer to be competitive, it needs to not only be asymptotically competitive but be able to solve problems within a limited time (for example one year) that no post-exa-scale classical supercomputer can solve within the same time. This search for a quantum killer-app turns out to be a formidable challenge. Using quantum chemistry simulations as a typical example, it turns out that significant advances in quantum algorithms are needed to achieve this goal. I will review how substantial improvements and optimized massively parallel implementation strategies of quantum algorithms have brought the problem of quantum chemistry from the realm of science fiction closer to being realistic. Similar algorithmic improvements will be needed in other areas in order to identify more “killer apps” for quantum computing. I will end with a short detour to quantum annealers and present a summary of our recent results on simulated classical and quantum annealing. Bio: Matthias Troyer is professor of computational physics at ETH Zurich where he teaches advanced C++ programming, high performance computing, and simulations methods for quantum systems. He is a pioneer of cluster computing in Europe, having been responsible for the installation of the first Beowulf cluster in Europe with more than 500 CPUs in 1999, and the most energy efficient general purpose computer on the top-500 list in 2008. He is a Fellow of the American Physical Society and his activities range from quantum simulations and quantum computing to the development of novel simulation algorithms, high performance computing, and computational provenance. He is, the author of the Boost MPI C++ library for message passing on parallel computers, and the leader of the open-source ALPS library for the simulation of quantum many body systems.
Views: 14080 GoogleTechTalks
Steven Chu (b. 1948) served as secretary of the United States Department of Energy from 2009 to 2013 and was co-winner of the 1997 Nobel Prize for Physics for his work in methods to cool and trap atoms with laser light. Dr. Chu was born in St. Louis, Missouri, into a family of scholars who placed an enormous value on education. Both his father and mother studied at MIT, in chemical engineering and economics, respectively, and they nurtured intellectual curiosity in their children. As a young child, Dr. Chu built model airplanes and warships, graduated to Erector Sets, and later, spent his school lunch money on parts for homemade rockets that he constructed with a friend. He matriculated to the University of Rochester, where he developed a love for physics and mathematics, and from which he graduated in 1970. In 1976, after completing his graduate and postdoctoral work at the University of California at Berkeley, Dr. Chu spent nine years at Bell Laboratories. The atmosphere at Bell Labs during that period (1978–1987) was one “permeated by the joy and excitement of doing science,” according to Dr. Chu, and his work there led to the laser cooling and trapping of atoms for which he was awarded the Nobel Prize. In 1987, Dr. Chu returned to California as professor of physics and applied physics at Stanford University, where he taught until 2009. From 2004–2009, he directed the Lawrence Berkeley National Laboratory (a US Department of Energy laboratory operated by the University of California) while continuing to teach physics at Stanford. Dr. Chu’s appointment to the Cabinet recognized his commitment to addressing energy challenges of all types, including energy efficiency, greenhouse gas emissions, and the nation’s dependence on foreign oil. As secretary, Dr. Chu was dedicated to supporting companies that are working to refine existing green technologies (such as better batteries for plug-in hybrids and electric vehicles) and to moving those technologies into the marketplace. Learn more about Steven Chu through the US Department of Energy or via his autobiography on the Nobel Prize website.
Views: 712 MIT Video Productions External
Quantum Quandaries and other Heavy Matters. Spring 2017, MIT Museum. The MIT Museum held a three-part, salon-style series that looked at some of the stranger and more mysterious aspects of the physical universe. Participants were encouraged to add their voices to the discussion while meeting new people and learning about current research in the field. This event was held February 28, and the topic was "Quantum Computers and Philosophy of Science." Speakers included: Paola Cappellaro, Associate Professor of Nuclear Science and Engineering, MIT, and Brad Skow, Associate Professor of Philosophy, MIT. The series was moderated by David Kaiser.
Views: 499 MIT Museum
Daniel Lidar visited the Quantum AI Lab at Google LA to give a talk: "Quantum Information Processing: Are We There Yet?" This talk took place on January 22, 2015. Abstract: Quantum information processing holds great promise, yet large-scale, general purpose quantum computers capable of solving hard problems are not yet available despite 20+ years of immense effort. In this talk I will describe some of this promise and effort, as well as the obstacles and ideas for overcoming them using error correction techniques. I will focus on a special purpose quantum information processor called a quantum annealer, designed to speed up the solution to tough optimization problems. In October 2011 USC and Lockheed-Martin jointly founded a quantum computing center housing a commercial quantum annealer built by the Canadian company D-Wave Systems. A similar device is operated by NASA and Google. These processors use superconducting flux qubits to minimize the energy of classical spin-glass models with as many spins as qubits, an NP-hard problem with numerous applications. There has been much controversy surrounding the D-Wave processors, questioning whether they offer any advantage over classical computing. I will survey the recent work we have done to benchmark the processors against highly optimized classical algorithms, to test for quantum effects, and to perform error correction. Bio: Daniel Lidar has worked in quantum computing for nearly 20 years. He is a professor of electrical engineering, chemistry, and physics at USC, and hold a Ph.D. in physics from the Hebrew University of Jerusalem. His work revolves around various aspects of quantum information science, including quantum algorithms, quantum control, the theory of open quantum systems, and theoretical as well as experimental adiabatic quantum computation. He is a Fellow of the AAAS, APS, and IEEE. Lidar is the Director of the USC Center for Quantum Information Science and Technology, and is the Scientific Director of the USC-Lockheed Martin Center for Quantum Computing. Two of his former graduate students are now research scientists at Google’s quantum artificial intelligence lab.
Views: 13794 GoogleTechTalks
Physicists at the National Institute of Standards and Technology (NIST) have built a quantum simulator that can engineer interactions among hundreds of quantum bits - 10 times more than previous devices. In this video clip, NIST postdoctorial fellow Joe Britton describes the simulator and how it may help scientists study problems in materials science. For more info, see http://www.nist.gov/pml/div688/qubits-042512.cfm
Views: 9986 National Institute of Standards and Technology
The Simons Institute is pleased to announce the appointment of Luca Trevisan as our first permanent Senior Scientist. Luca rejoined UC Berkeley this fall, with joint appointments at the Simons Institute and Department of Electrical Engineering and Computer Sciences, and the Department of Mathematics. He comes to us most recently from Stanford University, where he was a Professor of Computer Science. He has also held posts at Columbia University, MIT and DIMACS, and earned his Ph.D. from the Sapienza University of Rome, under Pierluigi Crescenzi. This video introduction features Luca in conversation with Interim Senior Scientist, Christos Papdimitriou. View a full transcript of the interview: http://simons.berkeley.edu/news/profile-luca-trevisan
Views: 2002 Simons Institute
Jeffrey H. Shapiro ’67 SM ’68 EE ’69 PhD ’70 Julius A. Stratton Professor of Electrical Engineering and Computer Science Director, Research Laboratory of Electronics Jeffrey Shapiro is the Julius A. Stratton professor of electrical engineering at MIT and the director of the Research Laboratory for Electronics. Professor Shapiro, four-time MIT alumnus, centers his research on the application of communication theory to optical systems. He is best known for his work on the generation, detection, and application of squeezed-state light beams, but he also works in the areas of atmospheric optical communication, coherent laser radar, and quantum information theory.
Views: 464 InfiniteHistoryProject MIT
This is an audio version of the Wikipedia Article: Anton Zeilinger 00:00:43 1 Biography 00:02:16 2 Work 00:03:09 2.1 Quantum teleportation 00:03:50 2.2 Entanglement swapping – teleportation of entanglement 00:04:26 2.3 Entanglement beyond two qubits – GHZ-states and their realizations 00:05:56 2.4 Quantum communication, quantum cryptography, quantum computation 00:07:53 2.5 Further novel entangled states 00:08:29 2.6 Macroscopic quantum superposition 00:10:17 2.7 Further fundamental tests 00:12:09 2.8 Neutron interferometry 00:13:52 3 Honours and awards 00:14:01 3.1 International prizes and awards 00:15:15 3.2 Austrian prizes and awards 00:16:16 3.3 Further distinctions Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= Anton Zeilinger (German: [ˈtsaɪlɪŋɐ]; born 20 May 1945) is an Austrian quantum physicist who in 2008 received the Inaugural Isaac Newton Medal of the Institute of Physics (UK) for "his pioneering conceptual and experimental contributions to the foundations of quantum physics, which have become the cornerstone for the rapidly-evolving field of quantum information". Zeilinger is professor of physics at the University of Vienna and Senior Scientist at the Institute for Quantum Optics and Quantum Information IQOQI at the Austrian Academy of Sciences. Most of his research concerns the fundamental aspects and applications of quantum entanglement.
Views: 23 wikipedia tts
This is an audio version of the Wikipedia Article: Women in science 00:02:01 1 History 00:02:10 1.1 Cross-cultural perspectives 00:04:00 1.2 Ancient history 00:07:24 1.3 Medieval Europe 00:10:59 1.4 Scientific Revolution (sixteenth and seventeenth centuries) 00:14:49 1.5 Eighteenth century 00:24:07 1.6 Early nineteenth century 00:26:31 1.7 Late 19th century in western Europe 00:29:54 1.8 Late nineteenth century Russians 00:31:43 1.9 Late nineteenth century in the United States 00:33:01 1.10 Early twentieth century 00:33:10 1.10.1 Europe before World War II 00:37:05 1.10.2 United States before World War II 00:44:09 1.11 Later 20th century 00:46:06 1.11.1 Europe after World War II 00:49:52 1.11.2 United States after World War II 00:55:41 1.11.3 Australia after World War II 00:56:54 1.11.4 Israel after World War II 00:57:25 2 Nobel laureates 00:58:05 2.1 Chemistry 00:58:27 2.2 Physics 00:58:45 2.3 Physiology or Medicine 00:59:33 3 Fields Medal 00:59:54 4 Statistics 01:00:14 4.1 Situation in the 1990s 01:05:49 4.2 Overview of situation in 2013 01:06:43 4.2.1 Women in decision-making 01:08:32 4.2.2 Women in life sciences 01:10:48 4.2.3 Women in engineering and related fields 01:16:05 4.3 Regional trends as of 2013 01:17:31 4.3.1 Latin America and the Caribbean 01:20:11 4.3.2 Eastern Europe, West and Central Asia 01:22:17 4.3.3 Southeast Europe 01:23:24 4.3.4 European Union 01:26:10 4.3.5 Australia, New Zealand and USA 01:27:25 4.3.6 South Asia 01:29:28 4.3.7 Southeast Asia 01:32:47 4.3.8 Arab States 01:35:57 4.3.9 Sub-Saharan Africa 01:38:10 5 Lack of agency and representation of women in science 01:38:22 5.1 Social pressures that repress femininity 01:42:57 5.2 Underrepresentation of queer women in STEM fields 01:46:00 6 Reasons to why women are disadvantaged in science 01:49:49 7 Contemporary advocacy and developments of women in science 01:50:01 7.1 Efforts to increase participation 01:52:33 7.1.1 Women scientists in the media 01:53:10 7.2 Notable controversies and developments 01:57:31 7.2.1 Problematic public statements Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= Women have made significant contributions to science from the earliest times. Historians with an interest in gender and science have illuminated the scientific endeavors and accomplishments of women, the barriers they have faced, and the strategies implemented to have their work peer-reviewed and accepted in major scientific journals and other publications. The historical, critical and sociological study of these issues has become an academic discipline in its own right. The involvement of women in the field of medicine occurred in several early civilizations, and the study of natural philosophy in ancient Greece was open to women. Women contributed to the proto-science of alchemy in the first or second centuries AD. During the Middle Ages, convents were an important place of education for women, and some of these communities provided opportunities for women to contribute to scholarly research. While the eleventh century saw the emergence of the first universities, women were, for the most part, excluded from university education. The attitude to educating women in medical fields in Italy appears to have been more liberal than in other places. The first known woman to earn a university chair in a scientific field of studies, was eighteenth-century Italian scientist, Laura Bassi. Although gender roles were largely defined in the eighteenth century, women experienced great advances in science. During the nineteenth century, women were excluded from most formal scientific education, but they began to be admitted into learned societies during this period. In the later nineteenth century, the rise of the women's college provided jobs for women scientists and opportunities for education. Marie Curie, the first woman to receive a Nobel Prize in 1903 (physics), went on to become a double Nobel Prize recipient in 1911 (chemistry), both for her work on radiation. Forty women have been awarded the Nobel Prize between ...
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