旭日量子伊星电池

IF 2.9 2区物理与天体物理 Q2 Physics and Astronomy

Physical Review A Pub Date : 2024-07-26 DOI:10.1103/physreva.110.012227

Akash Mitra, Shashi C. L. Srivastava

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引用次数: 0

摘要

我们研究了最近提出的旭日量子伊辛模型中的能量传递过程，该模型由两个相互作用的可积分系统组成：具有极小横向场的横向伊辛链和有限数量的外部孤立量子比特。我们的研究表明，在这个量子电池模型中，电池和充电器之间的耦合可以用来优化各向异性，也就是从电池中提取的最大能量。同时，最大充电功率会随着耦合强度的增加而增加，从而在强耦合极限下同时优化各向异性和充电功率。此外，我们还证明了各向同性和充电功率都与充电器的初始状态无关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Sunburst quantum Ising battery

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Sunburst quantum Ising battery

We study the energy-transfer process in the recently proposed sunburst quantum Ising model, which consists of two interacting integrable systems: a transverse Ising chain with a very small transverse field and a finite number of external isolated qubits. We show that in this model of the quantum battery, coupling between the battery and charger can be used to optimize the ergotropy, which is the maximum amount of energy that can be extracted from the battery. At the same time, maximum charging power increases with the coupling strength, allowing for the simultaneous optimization of both ergotropy and charging power in the strong-coupling limit. Furthermore, we show that both ergotropy and charging power are independent of the initial state of the charger.

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来源期刊

Physical Review A 物理-光学

CiteScore

5.40

自引率

24.10%

发文量

审稿时长

2.2 months

期刊介绍： Physical Review A (PRA) publishes important developments in the rapidly evolving areas of atomic, molecular, and optical (AMO) physics, quantum information, and related fundamental concepts. PRA covers atomic, molecular, and optical physics, foundations of quantum mechanics, and quantum information, including: -Fundamental concepts -Quantum information -Atomic and molecular structure and dynamics; high-precision measurement -Atomic and molecular collisions and interactions -Atomic and molecular processes in external fields, including interactions with strong fields and short pulses -Matter waves and collective properties of cold atoms and molecules -Quantum optics, physics of lasers, nonlinear optics, and classical optics