• Prof.  Yehuda B. Band
  • Prof. Yehuda B. Band
  • Ben-Gurion University, Israel
  • Title: Quantum decoherence: A stochastic processes approach
  • Abstract:
    Decoherence of a quantum system results due to its interaction with an environment.  For example, a spin decoheres by virtue of its interaction with the magnetic field arising from other nearby spins.  A stochastic equation approach for treating decoherence can yield analytical solutions for the average value of the spin as a function of time for various kinds of stochastic fluctuations.  Moreover, it allows the derivation of master equations.  We address some related decoherence problems, e.g., decoherence of systems with an electric dipole moment, decoherence of Landau-Zener transitions and decoherence of nitrogen-vacancy centers in diamond.
  • Biography:

    Professor Yehuda B. Band of the Department of Chemistry, the Department of Electro-optics and Department of Physics, and theIlse Katz Institute for Nanoscale Science and Technology, at the Ben-Gurion University, Beer-Sheva, Israel, holds the Snow Chair in Nanotechnology.  His web page is:http://www.bgu.ac.il/~band.

    Yehuda was born on December 1, 1946 in Munich, Germany.  Upon immigrating with his family to the USA in 1951, he grew up in Brooklyn, NY.  He received his B.S. from The Cooper Union for the Advancement of Science and Art in 1968, and his M.S. and Ph.D. from University of Chicago in 1970 and 1973 respectively, and moved to Israel in 1978. He has been affiliated in the past with Argonne National Laboratory, Allied-Signal Inc., National Institute for Standards and Technology (NIST), University of Chicago, Harvard-Smithsonian Center for Astrophysics and Harvard University.
     
    Professor Band's research interests include collision theory, light scattering, nonlinear-optics electro-optics and quantum-optics, laser physics and chemistry, electronic transport properties of matter, molecular dissociation, and thermodynamics.  His foremost expertise is in quantum scattering and the interaction of light with matter.  He has worked on photodissociation of molecules, transport of electrons in small electronic devices, ultra-cold collision phenomena in laser-cooled atom traps, Bose-Einstein condensation, quantum-degenerate fermionic systems, coherent matter waves, thermodynamics of processes occurring in finite time with finite rates, the relationship of absorption and emission in multilevel systems, application of the birefringence of solid-state laser media to laser line narrowing, light-induced population transfer in molecules, nonlinear optical properties of atoms and molecules, pulse compression and mode-locking of lasers, second harmonic generation, three-wave and four-wave mixing of light and matter waves, stimulated Raman processes, pulse compression in fiber Raman lasers, self-focusing of light, optical and matter-wave solitons, and stochastic processes in chemistry and physics. Professor Band is the author of about two hundred fifty scientific publications in these fields and holds numerous patents. He is the author of  “Light and Matter: Electromagnetism, Optics, Spectroscopy and Lasers”, published byJohn Wiley & Sons Ltd (see http://www.bgu.ac.il/~band/Light&Matter.html) and “Quantum Mechanics with Applications toInformation-Science andNanotechnology”, co-authored with Y. Avishai, published by Elsevier (Academic Press) (http://store.elsevier.com/Quantum-Mechanics-with-Applications-to-Nanotechnology-and-Information-Science/Yehuda-Band/isbn-9780444537867/).He was awarded The Barecha Fund Fellowship for Outstanding Young Scientists (1978), The Allied-Signal Inventor Award (1988), The Japanese Society for the Promotion of Science Fellowship (1997), The BGU Rector’s Prize for Excellence in Research (2006), he was appointed to the Snow Chair in Nanotechnology in 2007, he has been a Harvard University Fellow (1991-92), and he ran an Israel Science Foundation Center of Excellence (2003-2007).  He is a member of the Israel Physical Society, the Israel Chemical Society and was elected a Fellow of the American Physical Society in 1996.
    Dr. Band’s recent journal publications can be downloaded from the link:
    http://www.bgu.ac.il/~band/band_cv.html
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Conference:
August 26-28, 2014
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July 9, 2014
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