论文标题

检测均匀预量的量子性

Detecting quantumness in uniform precessions

论文作者

Zaw, Lin Htoo, Aw, Clive Cenxin, Lasmar, Zakarya, Scarani, Valerio

论文摘要

在Tsirelson的工作基础上,我们提出了一个协议系列,该协议家族在唯一的假设下,检测单个量子系统的合适状态的非经典性,即测得的动力学可观察到的是经历均匀的进度。我们扩展的Tsirelson的工作中预计谐波振荡器的情况是。然后,我们将协议应用于有限维旋转,这些旋转在真实空间中经历统一的进动,并在每个$ j \ geq \ geq \ frac {3} {2} $(不包括$ j = 2 $)之间找到经典和量子期望之间的差距。

Building on work by Tsirelson, we present a family of protocols that detect the nonclassicality of suitable states of a single quantum system, under the sole assumption that the measured dynamical observable undergoes a uniform precession. The case of the harmonic oscillator was anticipated in the work by Tsirelson, which we extend. We then apply the protocols to finite-dimensional spins that undergo uniform precession in real space and find a gap between the classical and the quantum expectations for every $j\geq \frac{3}{2}$ (excluding $j=2$).

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