论文标题
量子波动阻碍了Landauer限制附近的有限时间信息擦除
Quantum fluctuations hinder finite-time information erasure near the Landauer limit
论文作者
论文摘要
信息是物理的，但也会在有限的时间内处理信息。在涉及计算协议的情况下，量子制度中的有限时间处理可以动态产生连贯性。在这里，我们表明这可能具有显着的热力学意义。我们证明，经过有限的时间信息擦除协议的系统的能量本征产产生的量子相干性产生了极端耗散的罕见事件。这些波动纯粹是量子的起源。通过研究缓慢驾驶极限的耗散热量的完整统计数据，我们证明连贯性为所有统计累积物提供了无负贡献。使用单个位擦除的简单和范式示例，我们表明这些极端耗散事件产生了不同的，实验可区分的特征。
Information is physical but information is also processed in finite time. Where computing protocols are concerned, finite-time processing in the quantum regime can dynamically generate coherence. Here we show that this can have significant thermodynamic implications. We demonstrate that quantum coherence generated in the energy eigenbasis of a system undergoing a finite-time information erasure protocol yields rare events with extreme dissipation. These fluctuations are of purely quantum origin. By studying the full statistics of the dissipated heat in the slow driving limit, we prove that coherence provides a non-negative contribution to all statistical cumulants. Using the simple and paradigmatic example of single bit erasure, we show that these extreme dissipation events yield distinct, experimentally distinguishable signatures.
