Abstract
We propose a Wigner-function-based parameter that can be used as an indicator of quantum chaos. This parameter is defined as “entropy” from the time dependence of “nonclassicality” proposed by A. Kenfack and K. Życzkowski [J. Opt. B 6, 394 (2004)]. We perform our considerations for the system of damped nonlinear (Kerr-like) oscillator excited by a series of ultrashort external pulses.
- Received 5 June 2008
DOI:https://doi.org/10.1103/PhysRevE.78.066219
©2008 American Physical Society