论文标题

多旋抗性驾驶多体量子奥托冰箱

Multi-spin counter-diabatic driving in many-body quantum Otto refrigerators

论文作者

Hartmann, Andreas, Mukherjee, Victor, Mbeng, Glen Bigan, Niedenzu, Wolfgang, Lechner, Wolfgang

论文摘要

量子冰箱从寒冷泵热到热储层。在少数粒子制度中,最初是绝热的工作 - 交换性笔触的反脱绝热(CD)是一个有前途的候选人,可以克服消失的冷却能力的瓶颈。在这里,我们提出了有限的多体量子冰箱,该量子冰箱以高系数的性能产生有限的冷却能力,这表现出色的非绝热对应物。我们采用多旋转CD驾驶,并用系统大小来研究制冷性能的缩放行为。我们进一步证明,通过精确CD方案的最佳制冷是催化过程。

Quantum refrigerators pump heat from a cold to a hot reservoir. In the few-particle regime, counter-diabatic (CD) driving of, originally adiabatic, work-exchange strokes is a promising candidate to overcome the bottleneck of vanishing cooling power. Here, we present a finite-time many-body quantum refrigerator that yields finite cooling power at high coefficient of performance, that considerably outperforms its non-adiabatic counterpart. We employ multi-spin CD driving and numerically investigate the scaling behavior of the refrigeration performance with system size. We further prove that optimal refrigeration via the exact CD protocol is a catalytic process.

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