WKB for a damped spin

Petr A. Braun; Daniel Braun; Fritz Haake

doi:10.1007/s100530050142

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arXiv · chao-dyn/9805018

WKB for a damped spin

Petr A. Braun·Daniel Braun·Fritz Haake

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Abstract

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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Petr A. Braun, Daniel Braun, Fritz Haake. 1998-05-22. WKB for a damped spin. https://doi.org/10.1007/s100530050142

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