English

Continuous Monitoring of Dynamical Systems and Master Equations

Quantum Physics 2015-06-03 v2

Abstract

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.

Keywords

Cite

@article{arxiv.1111.1105,
  title  = {Continuous Monitoring of Dynamical Systems and Master Equations},
  author = {L. F. Lopes Oliveira and R. Rossi and A. R. Bosco de Magalhaes and J. G. Peixoto de Faria and M. C. Nemes},
  journal= {arXiv preprint arXiv:1111.1105},
  year   = {2015}
}