论文标题
多种事件时空时期的高斯量子转向
Gaussian quantum steering in multi-event horizon spacetime
论文作者
论文摘要
我们研究了Schwarzschild-De保姆（SDS）时空的高斯量子转向，该时期既赋予黑洞事件范围（BEH）和宇宙事件范围（CEH），从而产生了两个不同的鹰温度。结果表明，黑洞的鹰效应总是减少量子转向，但是扩展的宇宙的鹰效应并不总是扮演相同的角色。我们第一次发现鹰效应可以改善量子转向。我们还发现，位于BEH中的观察者的可直达可管制性要比位于CEH的观察者更强。此外，我们研究了转向不对称性以及SDS时空中双向，单向和无路转向的条件。最后，我们在有效平衡温度的情况下研究高斯量子转向。我们表明，量子转向可随着有效温度单调而单调，但现在随着黑洞的鹰温度单调增加，这消除了人们相信鹰效应只能破坏量子转向的信念。
We study Gaussian quantum steering in the Schwarzschild-de Sitter (SdS) spacetime that is endowed with both a black hole event horizon (BEH) and a cosmological event horizon (CEH), giving rise to two different Hawking temperatures. It is shown that the Hawking effect of the black hole always reduces the quantum steering, but the Hawking effect of the expanding universe does not always play the same role. For the first time, we find that the Hawking effect can improve quantum steering. We also find that the observer who locates in the BEH has stronger steerability than the observer who locates in CEH. Further, we study the steering asymmetry, and the conditions for two-way, one-way and no-way steering in the SdS spacetime. Finally, we study the Gaussian quantum steering in the scenario of effective equilibrium temperature. We show that quantum steering reduces monotonically with the effective temperature but now increases monotonically with the Hawking temperature of the black hole, which banishes the belief that the Hawking effect can only destroy quantum steering.
