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Type: Artigo de periódico
Title: Trace formula for systems with spin from the coherent state propagator
Author: Ribeiro, AD
de Aguiar, MAM
Piza, AFRD
Abstract: We present a detailed derivation of the trace formula for a general Hamiltonian with two degrees of freedom where one of them is canonical and the other a spin. Our derivation starts from the semiclassical formula for the propagator in a basis formed by the product of a canonical and a spin coherent states and is valid in the limit h -> 0, j ->infinity with jh constant. The trace formula, obtained by taking the trace and the Fourier transform of the coherent state propagator, is compared to others found in the literature. (c) 2007 American Institute of Physics.
Country: EUA
Editor: Amer Inst Physics
Citation: Journal Of Mathematical Physics. Amer Inst Physics, v. 48, n. 11, 2007.
Rights: aberto
Identifier DOI: 10.1063/1.2806487
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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