Dephasing Process of a Single Atom Interacting with a Two-Mode Field

Autor:	Eied M. Khalil, Kamal Berrada, Sayed Abdel-Khalek, Beida Alsubei, Hichem Eleuch
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	qubit-field system finite dimensional pair coherent states phase damping linear entropy Fisher information entropy squeezing Science Astrophysics QB460-466 Physics QC1-999
Zdroj:	Entropy, Vol 23, Iss 2, p 252 (2021)
Druh dokumentu:	article
ISSN:	1099-4300
DOI:	10.3390/e23020252
Popis:	We consider the interaction of a qubit system with a two-mode field in the presence of multi-photon transition and phase damping effect. We use the master equation to obtain the density operator when the qubit is initially prepared in its excited state and the field is in a finite-dimensional pair coherent state. The properties of the considered system, such as the population inversion, amount of the mixedness, parameter estimation, and squeezing, are explored for one- and two-photon transitions. The effects of photon addition to the field and phase damping on the evaluation of these quantumness measures are also investigated.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/b751e368ef6a40febb1064e1383cd302 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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