WKB for a damped spin

Details WKB for a damped spin WKB for a damped spin

1998-05-22

arxiv.org/abs/chao-dyn/9805018v1

Nonlinear Sciences

Chaotic Dynamics

10 revtex pages, one eps figure; accepted for publication in EPJD

Scientific paper

10.1007/s100530050142

The master equation for a damped spin well known from the theory of superradiance, is written as a finite-difference equation and solved by a WKB-like method. The propagator thus obtained looks like the van Vleck propagator of a certain classical Hamiltonian system with one degree of freedom. A new interpretation is provided of the temporal broadening of initially sharp probability distributions as the analogue of the spreading of the quantum mechanical wave packet.

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