Entanglement-assisted charging of quantum batteries within optomechanical framework

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F25%3A73631181" target="_blank" >RIV/61989592:15310/25:73631181 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.aps.org/pre/abstract/10.1103/9vv8-s8r1" target="_blank" >https://journals.aps.org/pre/abstract/10.1103/9vv8-s8r1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/9vv8-s8r1" target="_blank" >10.1103/9vv8-s8r1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Entanglement-assisted charging of quantum batteries within optomechanical framework

Popis výsledku v původním jazyce

In this study, we propose an optomechanical cavity as a promising platform for charging a quantum battery embedding two two-level atoms. We assume the atoms and the single optical mode are initialized in their corresponding ground states while the mechanical resonator can be either in vacuum or its first excited state. Our findings reveal a remarkable correspondence between the generated entanglement between the atoms and the ergotropy of the quantum battery, i.e., the available energy by unitary operations. This observation of such a high degree of similarity between entanglement and ergotropy seems to be unprecedented. Furthermore, both linear and nonlinear optomechanical couplings are shown to enhance ergotropy provided being properly adjusted. Additionally, we examine the statistical properties of the optical and mechanical modes using the Mandel parameter. Our results indicate that the nonclassicality of the optical mode significantly boosts the available energy. In contrast, less negative Mandel parameter values, reflecting decreased nonclassicality, are preferable to assist the charging process. These insights suggest the possibility of using quantum features to optimize the efficiency of quantum batteries.

Název v anglickém jazyce

Entanglement-assisted charging of quantum batteries within optomechanical framework

Popis výsledku anglicky

In this study, we propose an optomechanical cavity as a promising platform for charging a quantum battery embedding two two-level atoms. We assume the atoms and the single optical mode are initialized in their corresponding ground states while the mechanical resonator can be either in vacuum or its first excited state. Our findings reveal a remarkable correspondence between the generated entanglement between the atoms and the ergotropy of the quantum battery, i.e., the available energy by unitary operations. This observation of such a high degree of similarity between entanglement and ergotropy seems to be unprecedented. Furthermore, both linear and nonlinear optomechanical couplings are shown to enhance ergotropy provided being properly adjusted. Additionally, we examine the statistical properties of the optical and mechanical modes using the Mandel parameter. Our results indicate that the nonclassicality of the optical mode significantly boosts the available energy. In contrast, less negative Mandel parameter values, reflecting decreased nonclassicality, are preferable to assist the charging process. These insights suggest the possibility of using quantum features to optimize the efficiency of quantum batteries.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GX21-13265X" target="_blank" >GX21-13265X: Kvantová ne-Gaussovská koherence</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

PHYSICAL REVIEW E

ISSN

2470-0045

e-ISSN

2470-0053

Svazek periodika

111

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

"064117-1"-"064117-9"

Kód UT WoS článku

001511864500004

EID výsledku v databázi Scopus

2-s2.0-105012802845