| Nonlinear Waves in Quantum Systems |
| Organizers: |
| Joachim Brand ( Massey University, New Zealand ) |
| Lincoln Carr ( Colorado School of Mines, U.S.A. ) |
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| Although many-body quantum mechanics is linear, observations are equivalent to averaging over quantum operators. This averaging process
gives rise to effective nonlinearity, typically on a larger scale, while quantum degeneracy may still dominate many properties. The dynamical description of such
averaged quantities, e.g. the order parameter or correlations, is given by one or more coupled nonlinear partial differential equations, solutions of which are
nonlinear waves. Quantum systems in which nonlinear waves play a key role in experiments include Bose-Einstein or Fermi condensates in ultracold atomic gases,
polariton-exciton condensates in solid state materials, and superfluid Helium. Manipulation of confining potentials and other external experimental controls lead to
a tremendous variety of nonlinear PDEs, including equations relevant to cosmological and relativistic physics. This mini-symposium presents a broad view of nonlinear
waves in quantum systems, from experiment to theory. |
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| List of Speakers: |
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| 1) Jeff Steinhauer ( Technion-Israel Institute of Technology, Israel ) |
| "A sonic black hole in a density-inverted Bose-Einstein
condensate" |
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| 2) Luis Santos ( University of Hannover, Germany ) |
| "Non-linear phenomena in polar gases and quasi-relativistic
spinor condensates" |
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| 3) Lincoln Carr ( Colorado School of Mines, U.S.A. ) |
| "Semions, skyrmions, and a zoo of nonlinear waves in the nonlinear Dirac equation" |
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| 4) Sean Nowling ( University of Helsinki, Finland ) |
| "Holographic Solitons and the AdS/CFT Correspondence" |
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| 5) Klaus Sengstock ( University of Hamburg, Germany ) |
| "Spinor-quantum gases in triangular and hexagonal optical lattices" |
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| 6) Sergej Flach ( Max Planck Institute for the Physics of Complex Systems, Germany ) |
| "Universal spreading of wave packets in disordered nonlinear systems" |
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| 7) Daniele Sanvitto ( Autonomous University of Madrid, Spain ) |
| "Observation of BEC-related phenomena in polariton condensates" |
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| 8) Lev Pitaevskii ( University of Trento, Italy ) |
| "Sound propagation in cylindrically confined gas" |
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| 9) Natalia Berloff ( Cambridge University, U.K. ) |
| "Turbulence and electron bubbles in liquid helium and
Bose-Einstein condensates" |
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| 10) Makoto Tsubota ( University of Kyoto, Japan ) |
| "Quantum turbulence and nonlinear instability in quantum
fluids" |
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| 11) Kris Helmerson ( Monash University, Australia ) |
| "A Bose-Einstein Condensate in an optical ring-shaped trap" |
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| 12) Yvan Castin ( Ecole Normale Superieure, France ) |
| "Quantum solitons and their scattering on a barrier" |
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| 13) Joachim Brand ( Massey University, New Zealand ) |
| "Spectroscopy of bound states with matter-wave solitons" |
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| 14) Biao Wu ( Institute of Physics, Chinese Academy of Sciences, China ) |
| "Composition Relation between Gap Solitons and Bloch Waves
in Nonlinear Periodic Systems" |
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| 15) Weidong Li ( Shanxi University, China ) |
| "Nonlinear quantum physics in Bose-Einstein Condensates" |
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| 16) Matt Davis ( University of Queensland, Australia ) |
| "Spontaneous formation of topological defects in ultra-cold" |
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| 17) Masahito Ueda ( University of Tokyo, Japan ) |
| "Information thermodynamics" |
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