论文标题

投影测量可以探测非古典工作提取和时间相关

Projective measurements can probe non-classical work extraction and time-correlations

论文作者

Hernández-Gómez, Santiago, Gherardini, Stefano, Belenchia, Alessio, Lostaglio, Matteo, Levy, Amikam, Fabbri, Nicole

论文摘要

我们展示了一种实验技术,可以使用没有任何辅助的投影测量值来表征真正非分类的多时间相关性。我们在钻石的氮气散布中心中实施该方案,该中心经过了统一的量子工作方案。我们重建在Margenau-Hills准生物中编码的量子力学时间相关性。我们观察到工作提取的峰值五倍五倍的投影能量测量方案,并且违反了新衍生的随机界限。由于准稳定性分布的潜在负面性,我们通过异常的能量交换来解释现象。

We demonstrate an experimental technique to characterize genuinely nonclassical multi-time correlations using projective measurements with no ancillae. We implement the scheme in a nitrogen-vacancy center in diamond undergoing a unitary quantum work protocol. We reconstruct quantum-mechanical time correlations encoded in the Margenau-Hills quasiprobabilities. We observe work extraction peaks five times those of sequential projective energy measurement schemes and in violation of newly-derived stochastic bounds. We interpret the phenomenon via anomalous energy exchanges due to the underlying negativity of the quasiprobability distribution.

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