简介: |
Abstract: Since the paper of Renes et al. [J. Math. Phys. 45, 2171 (2004)], there has been much effort in the quantum information community to prove (or disprove) the existence of symmetric informationally complete (SIC) sets of quantum states in arbitrary finite dimension. In this talk, I will attempt to strengthen the urgency of this question by showing that if SIC-sets exist, they have some very nice properties. Among these are 1) by a natural measure of orthonormality, SIC-sets are as close to being an orthonormal basis for the space of density operators as possible, and 2) in prime dimensions, the standard construction for complete sets of mutually unbiased bases and Weyl-Heisenberg covariant SIC-sets are intimately related: The latter represent minimum uncertainty states for the former in the sense of Wootters and Sussman. Finally, I will discuss what quantum state space looks like when expressed in SIC language.
Brief Biography of Professor Fuchs:
Research Interests:
Quantum information theory Quantum communication and cryptography Quantum foundations in the light of quantum information Quantum control and quantum computation
Present Employment: Member of Technical Staff, Bell Labs, Alcatel-Lucent
Education: Ph. D. in Physics, May 1996, The University of New Mexico, Albuquerque, New Mexico Dissertation: "Distinguishability and Accessible Information in Quantum Theory" Advisor: Carlton M. Caves B. S. in Physics, with High Honors, December 1987 B. S. in Mathematics, with High Honors, December 1987 The University of Texas at Austin, Austin, Texas
Honors, Professional Awards, and Invited Community Service: Associate Editor, Quantum Information and Computation, Rinton Press, since 2000. 2-Year Member-at-Large, Executive Committee, American Physical Society Topical Group on Quantum Information, 2007–2008. Adjunct Professor of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico, since 2006. (Adjunct Assistant Professor, 2000–2005.) Member, Technology Experts Panel, United States Advanced Research and Development Activity (ARDA) Roadmap for Quantum Cryptography, since 2003. Member, National Science Foundation Review Panel on Mathematical Physics, 2005. E. T. S. Walton Visitor Award, Science Foundation Ireland, consisting of the compensation of my Bell Labs salary + 20% cash award + research funds for a sabbatical to Communications Network Research Institute, Dublin, Ireland, April 2003 – August 2004. Guest Professor, Research Center for Quantum Communication, Tamagawa University, Tokyo, Japan, since 2000. Paper A27 below listed among the "top ten breakthroughs of the year 1998" by the editors of Science. Known citations in the ISI Science Citation Index > 2,000.
Professional Affiliations: American Mathematical Society (member) American Physical Society (member) Center for Discrete Mathematics & Theoretical Computer Science (permanent member) Institute for Science and Interdisciplinary Studies (member) International Quantum Structures Association (member) Philosophy of Science Association (member) William James Society (member)
Journals Refereed: American Journal of Physics Annals of Physics European Physical Journal D Europhysics Letters Foundations of Physics IEEE Transactions on Information Theory International Journal of Quantum Information Journal of Applied Mathematics Journal of Mathematical Physics Journal of Modern Optics Journal of Optics Journal of Physics A Nature Open Systems & Information Dynamics Physica Scripta Physical Reviews A & E Physical Review Letters Physics Letters A Physics Today Quantum Information and Computation Quantum Information Processing Studies in History and Philosophy of Modern Physics |