Quantifying, characterizing, and controlling information flow in ultracold atomic gases

Gioacchino Massimo Palma, Mcendoo, Haikka, Maniscalco, De Chiara

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89 Citazioni (Scopus)

Abstract

We study quantum information flow in a model comprised of a trapped impurity qubit immersed in a Bose- Einstein-condensed reservoir. We demonstrate how information flux between the qubit and the condensate can be manipulated by engineering the ultracold reservoir within experimentally realistic limits. We show that this system undergoes a transition from Markovian to non-Markovian dynamics, which can be controlled by changing key parameters such as the condensate scattering length. In this way, one can realize a quantum simulator of both Markovian and non-Markovian open quantum systems, the latter ones being characterized by a reverse flow of information from the background gas (reservoir) to the impurity (system).
Lingua originaleEnglish
pagine (da-a)031602-1-031602-5
Numero di pagine5
RivistaPHYSICAL REVIEW A
Volume84
Stato di pubblicazionePublished - 2011

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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    Palma, G. M., Mcendoo, Haikka, Maniscalco, & De Chiara (2011). Quantifying, characterizing, and controlling information flow in ultracold atomic gases. PHYSICAL REVIEW A, 84, 031602-1-031602-5.