Continuous monitoring of dynamical systems and master equations

• Autor(a) principal: Rossi Jr, R.
• Data de Publicação: 2012
• Outros Autores: Oliveira, L. F. Lopes, Bosco de Magalhães, A. R., Faria, J. G. Peixoto de, Nemes, M. C.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: https://doi.org/10.1016/j.physleta.2012.04.017; http://www.locus.ufv.br/handle/123456789/21592
• topic: Dynamical systems; Master equations

We illustrate the equivalence between the non-unitary evolution of an open quantum system governed by a Markovian master equation and a process of continuous measurements involving this system. We investigate a system of two coupled modes, only one of them interacting with external degrees of freedom, represented, in the first case, by a finite number of harmonic oscillators, and, in the second, by a sequence of atoms where each one interacts with a single mode during a limited time. Two distinct regimes appear, one of them corresponding to a Zeno-like behavior in the limit of large dissipation.