Deterministic nonclassicality for quantum-mechanical oscillators in thermal states

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F16%3A33159795" target="_blank" >RIV/61989592:15310/16:33159795 - isvavai.cz</a>

Výsledek na webu

<a href="http://journals.aps.org/pra/pdf/10.1103/PhysRevA.94.013850" target="_blank" >http://journals.aps.org/pra/pdf/10.1103/PhysRevA.94.013850</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.94.013850" target="_blank" >10.1103/PhysRevA.94.013850</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Deterministic nonclassicality for quantum-mechanical oscillators in thermal states

Popis výsledku v původním jazyce

Quantum nonclassicality is the basic building stone for the vast majority of quantum information applications and methods of its generation are at the forefront of research. One of the obstacles any method needs to clear is the looming presence of decoherence and noise which act against the nonclassicality and often erase it completely. In this paper we show that nonclassical states of a quantum harmonic oscillator initially in thermal equilibrium states can be deterministically created by coupling it to a single two-level system. This can be achieved even in the absorption regime in which the two-level system is initially in the ground state. The method is resilient to noise and it may actually benefit from it, as witnessed by the systems with higher thermal energy producing more nonclassical states.

Název v anglickém jazyce

Deterministic nonclassicality for quantum-mechanical oscillators in thermal states

Popis výsledku anglicky

Quantum nonclassicality is the basic building stone for the vast majority of quantum information applications and methods of its generation are at the forefront of research. One of the obstacles any method needs to clear is the looming presence of decoherence and noise which act against the nonclassicality and often erase it completely. In this paper we show that nonclassical states of a quantum harmonic oscillator initially in thermal equilibrium states can be deterministically created by coupling it to a single two-level system. This can be achieved even in the absorption regime in which the two-level system is initially in the ground state. The method is resilient to noise and it may actually benefit from it, as witnessed by the systems with higher thermal energy producing more nonclassical states.

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/GB14-36681G" target="_blank" >GB14-36681G: Centrum excelence pro klasické a kvantové interakce v nanosvětě</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Physical Review A

ISSN

2469-9926

e-ISSN

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Svazek periodika

94

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

"013850-1"-"013850-9"

Kód UT WoS článku

000381475400006

EID výsledku v databázi Scopus

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