论文标题
量子重力作为通信资源
Quantum gravity as a communication resource
论文作者
论文摘要
量子信息可以为表征时空物理的操作含义提供镜头。该地区的一个众所周知的结果是，量子纠缠在黑洞附近降解。该结果将黑洞及其时空视为经典。但是，如果要通过机械处理这些量子呢？在这里，我们表明黑洞中的量子相干性，因此，自由度可以限制纠缠的降解，从而提高附近量子通信协议的性能。这一发现表明，时空的量子特征可以用作量子信息处理的资源。
Quantum information can provide a lens for characterizing the operational implications of spacetime physics. A well-known result in this area is that quantum entanglement is degraded in the vicinity of a black hole. This result treats the black hole and its spacetime as classical. But what if these were to be treated quantum-mechanically? Here, we show that quantum coherence in black hole, and thus spacetime, degrees of freedom can limit the degradation of entanglement, thereby improving the performance of nearby quantum communication protocols. This finding indicates that quantum features of spacetime could serve as resources for quantum information processing.
