论文标题
来自非量子量子波动的两个惯性Unruh-Dewitt检测器之间的纠缠收集
Entanglement harvesting between two inertial Unruh-DeWitt detectors from non-vacuum quantum fluctuations
论文作者
论文摘要
从量子场收获的纠缠收获是一个众所周知的事实，最近在平坦和不同的弯曲背景下，正在严格研究进一步研究。通常理解的配方研究可能会因量子真空波动的影响而导致两个不相关的Unruh-Dewitt检测器随着时间的推移而纠缠。我们目前的工作提出了一种彻底的表述，以实现非vacuum背景波动的纠缠收获。特别是，我们进一步考虑了单个激发场状态和一对惯性探测器，以$（1+1）$和$（1+3）$尺寸为$（1+1）。我们的主要观察表明，与这种情况下的真空波动相比，纠缠收集被抑制。我们的其他观察结果证实了在这种背景下的非零个体检测器过渡概率，并消失了纠缠收集以平行共同移动探测器。我们研究收获的纠缠的特征，并讨论其对不同系统参数的依赖性。
Entanglement harvesting from the quantum field is a well-known fact that, in recent times, is being rigorously investigated further in flat and different curved backgrounds. The usually understood formulation studies the possibility of two uncorrelated Unruh-DeWitt detectors getting entangled over time due to the effects of quantum vacuum fluctuations. Our current work presents a thorough formulation to realize the entanglement harvesting from non-vacuum background fluctuations. In particular, we further consider single excitation field states and a pair of inertial detectors, respectively, in $(1+1)$ and $(1+3)$ dimensions for this investigation. Our main observation asserts that entanglement harvesting is suppressed compared to the vacuum fluctuations in this situation. Our other observations confirm a non-zero individual detector transition probability in this background and vanishing entanglement harvesting for parallel co-moving detectors. We look into the characteristics of the harvested entanglement and discuss its dependence on different system parameters.
