Entropic uncertainty in two two-level atoms interacting with a cavity field in presence of degenerate parametric amplifier

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F10%3A10211933" target="_blank" >RIV/61989592:15310/10:10211933 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Entropic uncertainty in two two-level atoms interacting with a cavity field in presence of degenerate parametric amplifier

Popis výsledku v původním jazyce

The analytical solution of the problem of two two-level atoms with degenerate two-photon transitions interacting with a single-mode radiation field in the presence of a parametric amplifier term is presented. The purity of the atomic state has been usedto measure the degree of entanglement between the atom and the field. The temporal evolution of variance and entropy squeezing as well as atomic inversion for the single-atom case are studied. It has been shown that maximum squeezing for the variance andentropy squeezing occurs when the ratio between the amplifier coupling lambda(3) and the field frequency omega equals 0.26. Increasing the value of the ratio lambda(3)/omega further leads to the vanishing of squeezing from the system. It is also noted that the existence of the coupling parameter results in the system never reaching the pure state except at the points of revival times.

Název v anglickém jazyce

Entropic uncertainty in two two-level atoms interacting with a cavity field in presence of degenerate parametric amplifier

Popis výsledku anglicky

The analytical solution of the problem of two two-level atoms with degenerate two-photon transitions interacting with a single-mode radiation field in the presence of a parametric amplifier term is presented. The purity of the atomic state has been usedto measure the degree of entanglement between the atom and the field. The temporal evolution of variance and entropy squeezing as well as atomic inversion for the single-atom case are studied. It has been shown that maximum squeezing for the variance andentropy squeezing occurs when the ratio between the amplifier coupling lambda(3) and the field frequency omega equals 0.26. Increasing the value of the ratio lambda(3)/omega further leads to the vanishing of squeezing from the system. It is also noted that the existence of the coupling parameter results in the system never reaching the pure state except at the points of revival times.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

<a href="/cs/project/OC09026" target="_blank" >OC09026: Fotonické nelineární struktury jako zdroje neklasického světla</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of the Optical Society of America B - Optical Physics

ISSN

0740-3224

e-ISSN

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Svazek periodika

27

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

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Kód UT WoS článku

000274232500013

EID výsledku v databázi Scopus

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