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Conferences, Lectures, & Seminars
Events for March
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Decoy State Quantum Key Distribution---The Best of Both Worlds
Wed, Mar 02, 2005 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. Hoi-Kwong Lo, University of TorontoAbstract: There has been much interest in quantum key distribution. Experimentally, quantum key distribution over 150 km of commercial Telecom fibers has been successfully performed. Commercial quantum cryptographic products are currently being marketed by two start-ups. The crucial issue in quantum key distribution is its security. Unfortunately, all recent experiments are, in principle, insecure due to real-life imperfections. Here, we propose a method that can for the first time make most of those experiments secure by using essentially the same hardware. Our method is to use decoy states to detect eavesdropping attacks. As a consequence, we have the best of both worlds---enjoying unconditional security guaranteed by the fundamental laws of physics and yet surpassing substantially even some of the best experimental performances reported in the literature.[Work done with Xiongfeng Ma and Kai Chen.]Bio: Hoi-Kwong Lo is currently an Associate Professor of the Center for Quantum Information and Quantum Control (CQIQC), at the Dept. of ECE and Dept. of Physics of the University of Toronto. He received his Ph.D. in Physics from Caltech in 1994. After spending two years at the Institute for Advanced Study (IAS), Princeton, he joined Hewlett-Packard Labs, Bristol UK in 1996 and became a Senior Member of Technical Staff there in 1997. From 1999 to 2002, he was the Senior VP, R&D and Chief Scientist of MagiQ Technologies, Inc., a firm that has recently been chosen as a top ten company to watch by IEEE Spectrum. Hoi-Kwong Lo was among the first to prove the impossibility of quantum bit commitment and the security of quantum key distribution. His work has been widely reported in scientific press including "Science" and "Science News". His recent work on decoy state QKD (the subject of the present talk) was highlighted recently in a "News Scientists" article. He is a Founding Managing Editor of the journal QIC, which is a leading journal in the field. In 2003, he won a number of honors including Canada Research Chair, Ontario Distinguished Researcher, Premier's Research Excellence Award and Outstanding Young Researcher Award by the Overseas Chinese Physics Association.Host: Dr. Igor Devetak, x.09264, devetak@usc.edu
Location: Hughes Aircraft Electrical Engineering Center (EEB) - -248
Audiences: Everyone Is Invited
Contact: Mayumi Thrasher
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Sensor for Power, Energy, Environment and Engineering
Fri, Mar 04, 2005 @ 01:00 PM - 02:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Dr. Sheng Wu
PEER CALTECH
Pasadena, CAAbstract:
We present the research and development on sensors for Power, Energy, Environment and Engineering that we are carrying out at PEER Caltech.These sensors are based on light-matter elastic (Mie scattering, Optical Coherence Tomography/OCT) and inelastic (absorption, RAMAN, Laser Induced Fluorescence/LIF) interactions, and on gas adsorption/desorption processes. Major projects include multiwavelength laser scattering and FM LIDAR for CO2 and other gases, high power tunable lasers and drift-free carbon polymer sensors based on MEMS technology. Sensors and techniques developed are applied to gas/petroleum transportation and refinery, biological science and engineering.For light scattering, we will present the advantages for multi-wavelengths light scattering scheme, including light scattering principles, current particulate matters (PM) measuring instruments and multi-wavelengths scattering. We will discuss the importance of PM in air pollution control and atmospheric chemistry.For FM (frequency modulation) LIDAR, we will present a cost effective way to monitor ambient CO2 concentration changes over a several square kilometers and the application in carbon sequestration. We will start with the principles of FM absorption spectroscopy and LIDAR over long ranges and end will discussion on other applications of such FM LIDAR technique, including gas pipe safety and other toxic gas emissions.For drift-free carbon polymer sensors, we will talk about the principles of such adsorption sensors, problems and solutions to improve the performances of such sensors. We will discuss the possible applications of such sensors for petroleum transportation and refineries.Location: Kaprielian Hall (KAP) - 156
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Engineered Hybrid Nanostructures: Assembly, Structure, and Properties
Fri, Mar 04, 2005 @ 02:45 PM - 04:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
THE DEPARTMENT OF MATERIALS SCIENCE & ENGINEERING
PRESENTS A SEMINARbyDr. Atul KonkarNanostructure Materials & Devices Laboratory
Department of Materials Science & Engineering
University of Southern CaliforniaABSTRACTExploiting the full potential and promise of nanoscale structures useful for sensing the environment (radiation, chemical, biochemical, biological) requires their integration with semiconductor devices that efficiently amplify and process the sensed information. We have pioneered the synthesis, and structural and optical examination, of hybrid structures involving the integration of colloidal nanocrystal quantum dots (NCQDs) with epitaxically synthesized semiconductor nanostructures (such as quantum wells, wires, and dots). In this talk I shall present some results of our findings so far. Some new surface template based approaches, including array of engineered proteins, for the directed-assembly of NCQDs, and electron microscopy approaches developed for study of such hybrid systems will be discussed. FRIDAY, MARCH 4, 2005
2:45P.M. - 3:30P.M.
(Refreshments will be served at 2:30p.m.)
MHP 101**ALL FIRST-YEAR MATERIALS SCIENCE GRADUATE STUDENTS ARE REQUIRED TO ATTEND**
Location: Seeley Wintersmith Mudd Memorial Hall (of Philosophy) (MHP) - 101
Audiences: Everyone Is Invited
Contact: Petra Pearce
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Seminar: Designing Effective Aviation Security Systems Using Knapsack Problem Models and Algorithms
Mon, Mar 07, 2005 @ 09:00 AM - 10:00 AM
Daniel J. Epstein Department of Industrial and Systems Engineering
Conferences, Lectures, & Seminars
Laura A. McLayPh.D. Candidate,
Department of Mechanical and Industrial Engineering,
University of Illinois at Urbana-ChampaignABSTRACTPassenger prescreening is a critical component of aviation security systems. Developing strategies to effectively and efficiently screen passengers can be quite challenging. Moreover, even after such systems are in place, it can be very difficult to measure their effectiveness. The Multilevel Allocation Problem (MAP) models the screening of passengers and baggage in a multilevel aviation security system. A passenger is screened by one of several classes, each of which corresponds to a set of procedures using security screening devices, where passengers are differentiated by their perceived risk levels. The objective of MAP is to assign each passenger to a class such that the total security is maximized subject to assignment and budget constraints. Theoretical and experimental results are presented. The analysis of computational examples suggests that fewer security classes for passenger screening provide effective screening. Results are also presented for two related knapsack variations.
Location: Ethel Percy Andrus Gerontology Center (GER) - 309
Audiences: Everyone Is Invited
Contact: Shah Nirav
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CENG Student Seminar
Tue, Mar 08, 2005 @ 01:30 PM - 02:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
"DESIGN OF NOVEL PERFORMANCE-OPTIMIZED SILICON-BASED INTEGRATED CIRCUITS FOR BROADBAND WIRELESS/WIRELINE COMMUNICATIONS"PAYAM HEYDARIAssistant Professor of Electrical EngineeringUniversity of California, IrvineAbstract:----------An overview of novel circuit ideas for use in front-end of the emerging wideband wireless radio transceivers will be given. The talk also summarizes some of the research projects in UCI's broadband IC design lab.Bio:----Payam Heydari received received his Ph.D. from the University of Southern California. He is now an Assistant Professor of the EECS Department at UC Irvine. Dr. Heydari has received a National Science Foundation (NSF) CAREER Award in 2005 and a Best Paper Award at the International Conference on Computer Design in 2000. Dr. Heydari's research interests are in design and analysis of high-speed analog/RF ICs, and on-chip interconnect issues in nanometer CMOS ICs.Host: Dr. Won Namgoong, Ext. 02246
Location: Hughes Aircraft Electrical Engineering Center (EEB) - -248
Audiences: Everyone Is Invited
Contact: Rosine Sarafian
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Seminar: Vibration Based Energy Scavenging
Thu, Mar 10, 2005 @ 02:00 PM - 03:00 PM
Daniel J. Epstein Department of Industrial and Systems Engineering
Conferences, Lectures, & Seminars
Paul WrightCollege of Engineering,
The University of California, BerkeleyABSTRACTThe long term goal of this larger research effort is to develop an ultra-low power, completely self-powered, wireless node for sensor nets. The design of low power wireless transceivers and digital protocol processors is a key component of this effort, carried out with colleagues who specialize in low power radios. This presentation focuses on the modeling, design and new materials for an autonomous energy-delivery network. As the energy consumption of the node is limited by its size and efficiency, optimization of the complete power train is essential. This includes energy generation, storage and conversion. These future, self-powered nodes must have ultra-long life. (E.g. our research with the building industry indicates a need for >10 year life). Photovoltaics are a mature technology, and a solar cell based power source can be implemented using commercial off-the-shelf technology. However, less work has been done on exploiting low-level vibrations as a power source for low power electronics. The vibration-to-electricity converter – using piezoelectric "benders" in this presentation -- represents a significant research opportunity in itself. Devices at the "meso" and "micro" scale are being modeled, designed and fabricated . Application areas include: smart buildings, fire-rescue, industrial monitoring, and manufacturing in general.
Location: Ethel Percy Andrus Gerontology Center (GER) - 309
Audiences: Everyone Is Invited
Contact: Shah Nirav
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Classic and Emerging Techniques in Environmental Forensics
Fri, Mar 11, 2005 @ 01:00 PM - 02:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Ioana G. Petrisor, Ph.D.
Environmental Scientist
DPRA Inc.,
E-mail: Ioana.Petrisor@dpra.comAbstract:
Environmental Forensics is an emerging field that uses the knowledge and techniques from a large variety of basic and applied sciences in order to conduct scientific investigations and respond to three main questions: (1) what is the contamination source(s)? (2) when did the contamination occur? and (3) who is responsible? Both historical (documentary) and real field data may be used for a reliable investigation. The motivation for such studies is provided by the legal context (legislation) that requires and allows the recovery of remedial costs (in the order of millions of dollars) from the identified responsible parties.
The current presentation will focus on two main techniques with high potential in forensics investigations. The first technique based on isotopic (stable and/or radioactive) analyses could be considered classic as it has proven performances in many environmental forensics investigations. Several case studies, where isotopic analyses were efficiently applied for tracking contamination and manage liabilities, will be provided and discussed. The second technique is emerging and relies on the use of DNA fingerprinting for reconstructing contaminant release events. Several emerging molecular microbiological techniques known by the generic term of DNA fingerprinting (including terminal restriction fragment length polymorphism and ribotyping) will be presented. Their proven applicability in criminal forensics will be discussed along with the potential applications in environmental forensics. Finally, few quizzes will be given in order to illustrate the complexity of environmental forensic issues and how to integrate knowledge and techniques in solving intractable problems.Location: Kaprielian Hall (KAP) - 156
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Seminar : Silicon Insert Molded Plastics Process for an Elastically Averaged Connector Design
Mon, Mar 14, 2005 @ 11:00 AM - 12:00 PM
Daniel J. Epstein Department of Industrial and Systems Engineering
Conferences, Lectures, & Seminars
Patrick WilloughbyPh.D. Candidate,
Department of Mechanical Engineering,
Massachusetts Institute of TechnologyABSTRACTAs demand for smaller devices continues to increase, current manufacturing processes will find it more challenging to meet cost, quantity, and dimensional requirements. While microfabrication technology processes can create electronic devices in vast quantities with increasingly smaller dimensions, they are challenged to do so for mechanical devices at low cost and in large quantity. More traditional manufacturing processes such as machining or injection molding can more easily meet cost and quantity requirements, but cannot currently match the dimensional abilities of microfabrication processes. By merging microfabrication and traditional injection molding techniques in a process called Silicon Insert Molded Plastics (SIMP), the benefits of both technologies can be combined to produces parts to meet all three requirements. Silicon inserts have been manufactured using microfabrication techniques allowing for tolerances, smoothness, and dimensions at a nanoscale level. Using these types of basic primitive features, more complex structures were formed by bonding several sections of silicon together. Silicon inserts were secured into a mold created using traditional machining operations and initial fidelity tests parts were molded with features on the order of 10 micrometers. To demonstrate the capabilities of this process, a new fiber optic connector has been designed with the SIMP process in mind. The connector design employs the technique of elastic averaging, which represents a subset of surface coupling types where improved accuracy is derived from the averaging of errors over a large number of relatively compliant contacting members. Although the repeatability and accuracy obtained through elastic averaging may not be as high as in deterministic systems, elastic averaging design allows for higher stiffness and lower local stress when compared to kinematic couplings. An analytical model of the elastic averaging coupling has been developed to predict the effects of manufacturing variations on the design, with verification using scaled bench-level experiments.
Location: Ethel Percy Andrus Gerontology Center (GER) - 309
Audiences: Everyone Is Invited
Contact: Shah Nirav
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Seminar: Process Optimization for Machining of Hardened Steel Material
Wed, Mar 16, 2005 @ 02:00 PM - 03:00 PM
Daniel J. Epstein Department of Industrial and Systems Engineering
Conferences, Lectures, & Seminars
JingYing ZhangGeorge W. Woodruff School of Mechanical Engineering,
Georgia Institute of TechnologyABSTRACTFinish machining of hardened steel is receiving increasing attention as an alternative to the grinding process, because it offers comparable part finish, lower production cost, shorter cycle time, fewer process steps, higher flexibility and the elimination of environmentally hazardous cutting fluids. In order to demonstrate its economic viability, it is of particular importance to enable critical hard turning processes to run in optimal conditions based on specified objectives and practical constraints. The primary challenge for this process optimization stems from the fact that the procedure is highly constrained, and highly non-linear, involving mixed-integer-discrete-continuous design variables. Additionally, hard turning process models are discontinuous, non-explicit, not analytically differentiable and computationally expensive. In this seminar, a scientific and systematic methodology to design optimal tool geometry and cutting conditions is demonstrated. First, models to predict process thermal, stress, tool life and surface integrity are addressed. Then a systematic evolutionary algorithm is illustrated as its optimization block in the areas of: problem representation; selection scheme; genetic operators for integer, discrete, and continuous variables; constraint handling and population initialization. Finally, an intelligent advisory system for hard turning technology by integrating experimental, numerical and analytical knowledge into one system is presented. It can aid the industry to design the tool geometry and optimize cutting parameters over an extended range of tool designs and process configurations.
Location: Ethel Percy Andrus Gerontology Center (GER) - 309
Audiences: Everyone Is Invited
Contact: Shah Nirav
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MULTIPLAYER GAMES AND ADAPTIVE CONVERGENCE TO NASH EQUILIBRIA
Tue, Mar 22, 2005 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Professor Jeff ShammaMechanical and Aerospace Engineering Department
University of California, Los AngelesConsider a scenario in which multiple decision makers repeatedly play a matrix game and adjust their strategies according to observations of each other's actions. The game is noncooperative in that each player may have its own objective/utility function, and these objectives are not shared among players. A central issue is whether player strategies will converge to a Nash equilibrium. Prior work shows how convergence to a Nash equilibrium in this setting may or may not occur. This talk presents new strategic update mechanisms that can lead to convergent
behavior in previously nonconvergent cases (such as the Shapley and Jordan counterexamples) through the use of fundamental feedback control concepts. The talk also discusses implications regarding evolutionary game theory and population dynamics.----------------------------------------------------------- BIOGRAPHY Jeff S. Shamma is a Professor of Mechanical and Aerospace Engineering at the University of California, Los Angeles. He received the Ph.D. degree in Systems Science and Engineering in 1988 from the Massachusetts Institute of Technology, Department of Mechanical Engineering. He held
faculty positions at the University of Minnesota, Minneapolis, and the University of Texas, Austin, before joining UCLA in 1999. He is a recipient of a 1992 NSF Young Investigator Award and the 1996 Donald P. Eckman Award of the American Automatic Control Council, and was a Plenary Speaker at the 1998 American Control Conference. His main research interest is feedback control.--------------------------------Host: Professor Petros Ioannou ioannou@usc.eduLocation: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Irina Strelnik
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CENG STUDENT SEMINAR SERIES
Tue, Mar 22, 2005 @ 01:30 PM - 02:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
"FPGA-BASED DATA-MINING ARCHITECTURES"Zachary BakerElectrical Engineering-SystemsAbstract:Recent advances in storage and data sensing have revolutionized our technological capability for collecting and storing data. The Apriori algorithm is a popular correlation-based data-mining kernel. However, it is a computationally expensive algorithm and the running times can stretch up to days for large databases, as database sizes can extend to Gigabytes. Through the use of a new extension to the systolic array architecture, time required for processing can be significantly reduced. Our array architecture implementation on a Xilinx Virtex-II Pro 100 provides a performance improvement that can be orders of magnitude faster than the state-of-the-art software implementations. The system is easily scalable and introduces an efficient ``systolic injection'' method for intelligently reporting unpredictably generated mid-array results to a controller without any chance of collision or excessive stalling.Bio:Zachary K. Baker (zbaker@usc.edu) is a PhD Candidate studying architectures and algorithms for string matching, data mining, and network classification under Professor Viktor K. Prasanna.Host: Dr. Won Namgoong, Ext. 02246
Location: Hughes Aircraft Electrical Engineering Center (EEB) - -248
Audiences: Everyone Is Invited
Contact: Rosine Sarafian
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National Academy of Engineering Regional Meeting and Academic Symposium
Tue, Mar 22, 2005 @ 01:30 PM - 05:30 PM
Viterbi School of Engineering Student Affairs
Conferences, Lectures, & Seminars
Dean Nikias invites all Viterbi Graduate students to attend this NAE Regional Meeting and Academic Symposium including the following sessions:Intersection of Engineering and Entertainment
Dr. Wm. A Wulf, President, NAE
Dr. Steven B Sample, President USCResearch Challenges and Education
Moderated by C.L. Max Nikias
Peter Bernstein, Seamus Blackley, Bing Gordon, Robert Pepper, Leonard WashingtonReception FollowingPlease see:
http://viterbi.usc.edu/pdfs/unstructured/students/grad/NAE_Program_Final.pdf for the complete schedule and program.Location: Tower Hall (TOW) - n & Gown
Audiences: All Graduate Students
Contact: Cynthia Harrison
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CENG SEMINAR SERIES
Tue, Mar 22, 2005 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
"SOFTWARE DEFINED SIGNAL PROCESSING"Prof. Ryan KastnerUC, Santa BarbaraAbstract:The vision of ubiquitous connectivity is gradually becoming a reality with the development and deployment of cellular, Wi-Fi (802.11x) and even underwater wireless networks. However, many important challenges remain before true universal access is achieved. Among them is the development of hardware that can implement these increasingly complex communication protocols. Ideally, the hardware platform will provide a mechanism for multimode, multi-band, and multifunctional wireless communication. All the functions of this "software defined" communication device, except the front end of the receiver/transmitter (e.g. antenna and RF power amplifier), are implemented in changeable code. This requires an efficient and flexible high performance platform. The performance and flexibility of reconfigurable computing systems make them ideal platform for software defined signal processing. In order to realize a software-defined signal processing system, we must develop tools and methodologies to can automatically map communication protocols to hardware. In this talk, I will describe some of our research aimed at providing signal processing application designers with basic tools that allow them to quickly map their protocols into reconfigurable hardware. I will present a design flow from high level application specification to a bitstream that can be used to program a modern, high performance FPGA. Our design flow is unique in that it treats the FPGA as a two dimensional array of configurable data paths. As such, the distribution of the application data plays a large role in the performance of the application mapping. I will discuss our optimizations for partitioning data across the complex memory hierarchy seen in modern reconfigurable architectures. To motivate our design flow, I will discuss our recent work on implementing two signal processing applications on a high performance FPGA - radiolocation algorithms for RF (802.11x) and underwater acoustic modems.Bio:Ryan Kastner is currently an assistant professor in the Department of Electrical and Computer Engineering at the University of California, Santa Barbara. He received a PhD in Computer Science (2002) at UCLA, a masters degree in engineering (2000) and bachelor degrees (BS) in both electrical engineering and computer engineering (1999), all from Northwestern University. His current research interests lie in the realm of embedded systems, in particular reconfigurable computing, compilers and sensor networks. Professor Kastner has published close to 50 journal and conference papers, and is the author of the book, "Synthesis Techniques and Optimizations for Reconfigurable Systems" (with Majid Sarrafzadeh and Adam Kaplan), available from Kluwer Academic Publishing. He is a member of numerous conference technical committees including International Conference on Computer Aided Design (ICCAD), Design Automation Conference (DAC), International Conference on Computer Design (ICCD), Great Lakes Symposium on VLSI (GLSVLSI), the Engineering of Reconfigurable Systems and Algorithms (ERSA) and the IEEE International Symposium on Circuits and Systems (ISCAS). He serves on the editorial board for the Journal of Embedded Computing.Host: Prof. Viktor Prasanna, Ext. 04483
Location: Olin Hall of Engineering (OHE) - -132
Audiences: Everyone Is Invited
Contact: Rosine Sarafian
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Wave Generation by Intrusive Gravity Currents
Wed, Mar 23, 2005 @ 03:30 PM - 04:30 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
seminar by Bruce SutherlandFor more informaiton go to
http://ame-www.usc.edu/seminars
Location: John Stauffer Science Lecture Hall (SLH) - 100
Audiences: Everyone Is Invited
Contact: Dennis Plocher
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CENG SEMINAR SERIES
Thu, Mar 24, 2005 @ 12:00 PM - 01:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
"DISTRIBUTION OF PATH DURATIONS IN MOBILE AD-HOC NETWORKS"Prof. Richard LaUniversity of MarylandAbstract:We study the distribution of path duration in multi-hop wireless networks. Sadagopon et al. have shown using simulation results that the distribution of path duration can be well approximated when the number of hops in the path is larger than 3-4. In this talk we will show using an analytical model that indeed as the number of hops along a path increases, the path duration distribution can be accurately approximated by an exponential distribution under a set of mild conditions. We consider two different cases: (i) link residual lives are independent, and (ii) link residual lives are not independent. In the latter case we assume that the dependency between two links goes away as the distance between them increases. Then, we develop an approximate model for computing the distribution of link duration under a Random Waypoint (RW) mobility model, and demonstrate that the path duration distribution converges to an exponential distribution with increasing number of hops. Simulation results obtained using ns-2 simulator are provided to validate our assumptions and analysis as well as the accuracy of our approximate model for RW mobility.** Refreshments will be served Host: Prof. Ahmed Helmy, x11329, helmy@usc.edu
Location: Hughes Aircraft Electrical Engineering Center (EEB) - -349
Audiences: Everyone Is Invited
Contact: Rosine Sarafian
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DISTINGUISHED LECTURER SERIES: Assisted Capacities of Quantum Channels
Thu, Mar 24, 2005 @ 03:00 PM - 04:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
DR. CHARLES BENNETTIBM T.J. WatsonABSTRACT:Auxiliary resources such as shared randomness and feedback have no effect on the capacity of classical channels, but can have a dramatic effect on both the classical and quantum capacities of quantum channels. It has long been known that classical feedback can increase the quantum capacity of quantum channels, but recent results suggest that it can also increase their classical capacity. The quantum analog of shared randomness, namely sender:receiver entanglement, is the most powerful auxiliary resource, leading to assisted capacities that are both larger, and given by a simpler mathematical expressions, than other capacities. Joint work with Igor Devetak, Peter Shor, and John Smolin.BIO:Charles H. Bennett graduated from Croton-Harmon High School in 1960 and from Brandeis University, majoring in chemistry, in 1964. He received his PhD from Harvard in 1970 for molecular dynamics studies (computer simulation of molecular motion) under David Turnbull and Berni Alder. For the next two years he continued this research under the late Aneesur Rahman at Argonne Laboratory. Since coming to IBM Reseach in 1972, he has worked on various aspects of the relation between physics and information. In 1973, building on the work of IBM's Rolf Landauer, he showed that general-purpose computation can be performed by a logically and thermodynamically reversible apparatus, which can operate with arbitrarily little energy dissipation per step because it avoids throwing away information about past logical states; and in 1982 he proposed a reinterpretation of Maxwell's demon, attributing its inability to break the second law to the thermodynamic cost of destroying, rather than acquiring, information. In collaboration with Gilles Brassard of the University of Montreal he developed a practical system of quantum cryptography, allowing secure communication between parties who share no secret information initially, based on the uncertainty principle instead of usual computational assumptions such as the difficulty of factoring, and with the help of John Smolin built a working demonstration of it in 1989. Other research interests include algorithmic information theory, in which the concepts of information and randomness are developed in terms of the input/output relation of universal computers, and the analogous use of universal computers to define the intrinsic complexity or "logical depth" of a physical state as the time required by a universal computer to simulate the the evolution of the state from a random initial state. In 1983-5 as visiting professor of computer science at Boston University, he taught courses on cryptography and the physics of computation. In 1993 Bennett and Brassard, in collaboration with Claude Crepeau, Richard Jozsa, Asher Peres, and William Wootters, discovered "quantum teleportation," an effect in which the complete information in an unknown quantum state is decomposed into purely classical information and purely non-classical Einstein-Podolsky-Rosen (EPR) correlations, sent through two separate channels, and later reassembled in a new location to produce an exact replica of the original quantum state that was destroyed in the sending process. In 1995-7, working with Smolin, Wootters, IBM's David DiVincenzo, and other collaborators, he helped found the quantitative theory of entanglement and introduced several techniques for faithful transmission of classical and quantum information through noisy channels, part of the larger and recently very active field of quantum information and computation theory. More recently He is an IBM Fellow, a Fellow of the American Physical Society, and a member of the National Academy of Sciences. Host: Prof. Todd Brun, x03503 ***A reception will follow the seminar at 4:00p.m.
Location: Ethel Percy Andrus Gerontology Center (GER) - ontology Auditorium (GER-124)
Audiences: Everyone Is Invited
Contact: Rosine Sarafian
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Nanomechanics: A Continuum Theory
Fri, Mar 25, 2005 @ 11:00 AM - 12:00 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Special seminar by Yonggang Young Huangfor more information, go to
http://ame-www.usc.edu/seminarsAudiences: Everyone Is Invited
Contact: Dennis Plocher
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Configuration Features of the Blended Wing Body Transport
Wed, Mar 30, 2005 @ 03:30 PM - 04:30 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
seminar by Jennifer WhitlockFor more informaiton go to
http://ame-www.usc.edu/seminars
Location: John Stauffer Science Lecture Hall (SLH) - 100
Audiences: Everyone Is Invited
Contact: Dennis Plocher
