Artigo
Continuous monitoring of dynamical systems and master equations
Autor
Rossi Jr, R.
Oliveira, L. F. Lopes
Bosco de Magalhães, A. R.
Faria, J. G. Peixoto de
Nemes, M. C.
Institución
Resumen
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.