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arXiv 2407.04101cond-mat.stat-mechquant-ph
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长程相互作用量子系统中的普适功统计

Universal work statistics in long-range interacting quantum systems

Andrea Solfanelli, Nicolò Defenu

AI总结:

研究长程相互作用减少非绝热演化中缺陷导致的能量损失的条件,通过量子功统计证明长程系统对动态激发的鲁棒性,揭示其在提升量子热器件功率效率比和优化有限时间热循环方面的潜力。

摘要:

我们确定了长程相互作用的存在能够减少非绝热演化过程中因缺陷产生导致的能量损失的条件,这对于提升量子热器件的功率效率比至关重要。为此,我们研究了长程系统对多种外部驱动的响应,强调其与一般局域系统相比对动态激发的鲁棒性。这一现象通过量子功统计的研究得到证明,揭示了能量传递效率和动态量子临界性的深刻见解。我们的结果证明了在量子热力学应用中引入长程相互作用介质的益处,突出了优化有限时间量子热循环的潜力。借助有效维度方法,我们的发现可以以完全普适的方式得出,并随后具体化到不同的实验相关场景中。

英文摘要:

We determine the conditions under which the presence of long-range interactions reduce the energy losses due to defect generation during non-adiabatic evolution, crucial for enhancing the power to efficiency ratio of quantum thermal devices. In order to do so, we investigate the response of long-range systems to diverse external drivings, emphasizing their robustness against dynamic excitation in comparison to generic local systems. This phenomenon is demonstrated through the study of the quantum work statistics, revealing insights into energy transfer efficiency and dynamical quantum criticality. Our results demonstrate the benefits of including a long-range interacting medium for quantum thermodynamics application, highlighting the potential to optimize finite-time quantum thermal cycles. Thanks to the effective dimension approach our findings can be drawn in full generality and, then, specified to different experimentally relevant scenarios.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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