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Type: Artigo de periódico
Title: Initial value representation for the SU(n) semiclassical propagator
Author: Viscondi, TF
de Aguiar, MAM
Abstract: The semiclassical propagator in the representation of SU(n) coherent states is characterized by isolated classical trajectories subjected to boundary conditions in a doubled phase space. In this paper, we recast this expression in terms of an integral over a set of initial-valued trajectories. These trajectories are monitored by a filter that collects only the appropriate contributions to the semiclassical approximation. This framework is suitable for the study of bosonic dynamics in n modes with fixed total number of particles. We exemplify the method for a Bose-Einstein condensate trapped in a triple-well potential, providing a detailed discussion on the accuracy and efficiency of the procedure. (C) 2011 American Institute of Physics. [doi:10.1063/1.3601344]
Country: EUA
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.3601344
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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