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Phys. Rev. A 72, 042102 (2005) [7 pages]

Semiclassical propagation of spin-coherent states

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Marcel Novaes
Instituto de Física “Gleb Wataghin,” Universidade Estadual de Campinas, 13083-970 Campinas, São Paulo, Brazil

Received 7 June 2005; published 10 October 2005

The semiclassical propagation of spin-coherent states is considered in complex phase space. For two time-independent systems, we find the appropriate classical trajectories and show that their combined contributions are able to describe quantum interference with great accuracy. Not only the modulus but also the phase of the quantum propagator, both dynamical and geometric terms combined, are accurately reproduced.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.042102
DOI:
10.1103/PhysRevA.72.042102
PACS:
03.65.Sq, 03.65.Vf