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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Enabling quantum non-Markovian dynamics by injection of classical colored noise

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Costa-Filho, J. I. ; Lima, R. B. B. ; Paiva, R. R. ; Soares, P. M. ; Morgado, W. A. M. ; Lo Franco, R. ; Soares-Pinto, D. O.
Total Authors: 7
Document type: Journal article
Source: Physical Review A; v. 95, n. 5 MAY 25 2017.
Web of Science Citations: 9

The non-Markovian nature of quantum systems recently turned to be a key subject for investigations on open quantum system dynamics. Many studies, from its theoretical grounding to its usefulness as a resource for quantum information processing and experimental demonstrations, have been reported in the literature. Typically, in these studies, a structured reservoir is required to make non-Markovian dynamics emerge. Here, we investigate the dynamics of a qubit interacting with a bosonic bath and under the injection of a classical stochastic colored noise. A canonical Lindblad-like master equation for the system is derived by using the stochastic wave function formalism. Then, the non-Markovianity of the evolution is witnessed by using themeasure of Andersson, Cresser, Hall, and Li. We evaluate the measure for three different noises and study the interplay between environment and noise pump necessary to generate quantum non-Markovianity, as well as the energy balance of the system. Finally, we discuss the possibility to experimentally implement the proposed model. (AU)

FAPESP's process: 14/09566-0 - Experimental realization of the first ion trap in Brazil for quantum information processing.
Grantee:Rafael Rothganger de Paiva
Support type: Scholarships in Brazil - Post-Doctorate