Quantum teleportation through time-shifted AdS wormholes
Quantum teleportation through time-shifted AdS wormholes
复制标题
通过时移 AdS 虫洞的量子隐形传态
DOI：
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发表时间：
2017
影响因子：
5.4
通讯作者：
K. Papadodimas
中科院分区：
文献类型：
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作者：
R. V. Breukelen;K. Papadodimas
基于Gao-Jafferis-Wall和Maldacena-Stanford-Yang的工作，我们观察到两个纠缠CFTs的时移温度场态可以通过两个CFTs的适当耦合或通过应用修改的量子隐形传态协议来实现。这为一类通过时间平移与温度场相关的纠缠态的视界的光滑性提供了证据。这些状态的平滑性与防火墙悖论和量子引力中的某些观测量可能依赖于状态的提议有一定的关联。我们注意到，通过这些纠缠态的量子隐形传态可以在实验室设置中使用，以实现“时间机器”，这使得观察者能够在未来旅行。
Based on the work of Gao-Jafferis-Wall and Maldacena-Stanford-Yang, we observe that the time-shifted thermofield states of two entangled CFTs can be made traversable by an appropriate coupling of the two CFTs, or alternatively by the application of a modified quantum teleportation protocol. This provides evidence for the smoothness of the horizon for a large class of entangled states related to the thermofield by time-translations. The smoothness of these states has some relevance for the firewall paradox and the proposal that some observables in quantum gravity may be state-dependent. We notice that quantum teleportation through these entangled states could be used in a laboratory setup to implement a “time-machine”, which allows the observer to travel far in the future.