论文标题
弯曲时空中的真正三方非局部性和纠缠
Genuine tripartite nonlocality and entanglement in curved spacetime
论文作者
论文摘要
我们研究了Schwarzschild Black Hole的背景下的Dirac Fields的真正三方非局部性（GTN）和真正的三方纠缠（GTE）。我们发现，鹰辐射会降低物理上可访问的GTN和物理上可访问的GTE。前者在某种临界温度下遭受“突然死亡”，后者在无限鹰温度的极限下接近非零渐近值。我们还发现，鹰效应无法产生物理上无法接近的GTN，但可以在弯曲的时空中生成用于fermion场的物理无法接近的GTE。这些结果表明，一方面，GTN无法穿过黑洞的事件范围，但是GTE确实可以，另一方面，在弯曲时空中，存活的物理上可访问的GTE和生成的物理上无法接近的GTE都是非局部性的。发现物理上可访问的GTE与物理无法访问的GTE之间的一些一夫一妻制。
We study the genuine tripartite nonlocality (GTN) and the genuine tripartite entanglement (GTE) of Dirac fields in the background of a Schwarzschild black hole. We find that the Hawking radiation degrades both the physically accessible GTN and the physically accessible GTE. The former suffers from "sudden death" at some critical Hawking temperature, and the latter approaches to the nonzero asymptotic value in the limit of infinite Hawking temperature. We also find that the Hawking effect cannot generate the physically inaccessible GTN, but can generate the physically inaccessible GTE for fermion fields in curved spacetime. These results show that on the one hand the GTN cannot pass through the event horizon of black hole, but the GTE do can, and on the other hand the surviving physically accessible GTE and the generated physically inaccessible GTE for fermions in curved spacetime are all not nonlocal. Some monogamy relations between the physically accessible GTE and the physically inaccessible GTE are found.
