论文标题
非武器状态是否与检索时空的冲击波记忆非常相关？
Are non-vacuum states much relevant for retrieving shock wave memory of spacetime?
论文作者
论文摘要
冲击波反馈对时空的反应，信息存储在背景的记忆中。这里研究了局部冲击波对Minkowski度量的量子记忆效应。我们发现，在波浪位置的两侧，Wightman的功能对于通常的Minkowski时空而言相同。因此，对于任何类型的观察者而言，从此获得的可观察物都不会显示冲击的签名。此外，双方的现场真空状态都是等效的。相反，非效率状态的相关器确实会记住经典的冲击波，因此即使在任何框架中，它也可以在观察物中看到它的效果。我们认为，非vacuum的不是真空状态，而是与检索经典记忆的量子信息有关。
Shock wave gives back reaction to spacetime and the information is stored in the memory of background. Quantum memory effect of localised shock wave on Minkowski metric is investigated here. We find that the Wightman function for massless scalar field, on both sides of the wave location, turns out to be the same for usual Minkowski spacetime. Therefore the observables obtained from this, for any kind of observer, do not show the signature of the shock. Moreover, the vacuum states of field on both sides are equivalent. On the contrary, the correlator for the non-vacuum state does memorise the classical shock wave and hence the effect of it is visible in the observables, even for any frame. We argue that rather than vacuum state, the non-vacuum ones are relevant to retrieve the quantum information of classical memory.
