Geometrical correlations as a resource for nonlocal extractable work

Araya-Sossa, Kevin; Mundarain, Douglas F.

doi:10.1016/j.aop.2019.02.015

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…The authors have shown that while entanglement seems to be effectless or even destructive, quantum coherence presents a qualitative relation with the efficiency of the QB. However, more efforts are required to address the impact of quantum correlations in this field since a universal relation between the performance of quantum battery and its correlation contents has not yet been found [35]. As stated before, energy storage in QB can be done using an external charging field.…”

Section: Introductionmentioning

confidence: 99%

Performance of quantum batteries with correlated and uncorrelated chargers

Arjmandi¹,

Shokri²,

Faizi³

et al. 2022

Preprint

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Energy can be stored in some quantum batteries by electromagnetic fields as chargers. In this paper, the performance of a quantum battery with single and double chargers is studied. It is shown that by using two independent charging fields, prepared in coherent states, charging power of the quantum battery can be significantly improved, though the average number of embedded photons are kept the same in both scenarios. Then the results reveal that for the case of initially correlated states of the chargers the amount of extractable energy, measured by ergotropy, is more than initially uncorrelated ones. Finally, the behavior of generated quantum consonance between different cells of quantum battery and also the effect of generated battery-charger mutual information during the evolution are investigated and some qualitative relations between the generation of such correlations and the capability of energy storage in the quantum battery is demonstrated.

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Section: Introductionmentioning

confidence: 99%

Performance of quantum batteries with correlated and uncorrelated chargers

Arjmandi¹,

Shokri²,

Faizi³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…In QBs, its ergotropy (maximum amount of extractable energy by unitary operations [18]) can be stored as entanglement [19] and/or coherences [20,21]. But, it is also possible to explore these quantities in order to speed-up the charging process of such batteries [22][23][24][25][26]. However, it is important to mention that the role of entanglement is not positive in general [27], and it can play a destructive effect on the charging process, while quantum coherence seems to be an good source to the efficiency of QBs.…”

Section: Introductionmentioning

confidence: 99%