Title: Crossover-time in quantum boson and spin systems
First published: 1994
Description: The authors compare classical and quantum dynamics in the quasiclassical region of parameters and under the condition of unstable (chaotic) classical behavior. They estimate the characteristic time-scale at which classical and quantum solutions start to differ significantly. The method is based on exact equations for time-dependent expectation values in boson and spin coherent states, and applies to rather general Hamiltonians with many degrees of freedom. The authors develop a consistent dynamical theory for quantum nonintegrable Hamiltonians and provide explicit examples of classical-quantum "crossover-time", a very common and fundamental phenomenon in quantum nonintegrable systems. This book can be recommended to graduate students and to specialists.
Subjects: Bosons, Nuclear spin, Quantum theory, Chaotic behavior in systems, Nonlinear theories, Quantum field theory, Statistical physics, Thermodynamics, Physics, Quantum computing, Laser physics, Quantum optics, Information and Physics Quantum Computing, Photonics Laser Technology and Physics, Quantum Optics, Quantum Electronics, Nonlinear Optics
LC classification: QC174.45 .B39 1994