ENGLISH

Crossover-time in quantum boson and spin systems

By Gennady P. Berman , Evgeny N. Bulgakov , Darryl D. Holm

Book information

Publisher
Springer
Year
1994
ISBN
3540580115
LCC
QC174.45 .B39 1994
Open Library ID
OL1094922M
Language
english
Format
DJVU
Filesize
2 MB (1610667 bytes)
Series
Lecture Notes in Physics
Edition
1
Pages
289\289
Library
kolxoz
DPI
300
Scanned
yes
Time added
2009-07-20 03:45:11

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.

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