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복잡계이론물리연구단
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Lossy Micromaser Battery: Almost Pure States in the Jaynes-Cummings Regime

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Title
Lossy Micromaser Battery: Almost Pure States in the Jaynes-Cummings Regime
Author(s)
Vahid Shaghaghi; Varinder Singh; Carrega, Matteo; Dario Rosa; Benenti, Giuliano
Publication Date
2023-03
Journal
ENTROPY, v.25, no.3
Publisher
MDPI
Abstract
We consider a micromaser model of a quantum battery, where the battery is a single mode of the electromagnetic field in a cavity, charged via repeated interactions with a stream of qubits, all prepared in the same non-equilibrium state, either incoherent or coherent, with the matter-field interaction modeled by the Jaynes-Cummings model. We show that the coherent protocol is superior to the incoherent one, in that an effective pure steady state is achieved for generic values of the model parameters. Finally, we supplement the above collision model with cavity losses, described by a Lindblad master equation. We show that battery performances, in terms of stored energy, charging power, and steady-state purity, are slightly degraded up to moderated dissipation rate. Our results show that micromasers are robust and reliable quantum batteries, thus making them a promising model for experimental implementations.
URI
https://pr.ibs.re.kr/handle/8788114/13453
DOI
10.3390/e25030430
ISSN
1099-4300
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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