论文标题
DS/CFT和时间样纠缠熵的伪熵
Pseudo Entropy in dS/CFT and Time-like Entanglement Entropy
论文作者
论文摘要
我们研究DS/CFT中的全息纠缠熵，并在CFT中引入时间样的纠缠熵。他们俩通常都采用复杂的值，并通过分析延续相互关联。我们认为它们被正确理解为伪熵。我们发现伪熵的虚构部分意味着DS/CFT的时间出现。
We study holographic entanglement entropy in dS/CFT and introduce time-like entanglement entropy in CFTs. Both of them take complex values in general and are related with each other via an analytical continuation. We argue that they are correctly understood as pseudo entropy. We find that the imaginary part of pseudo entropy implies an emergence of time in dS/CFT.
