论文标题
浸入热浴中的光学系统中的霍金辐射中纠缠的鲁棒性
Robustness of entanglement in Hawking radiation for optical systems immersed in thermal baths
论文作者
论文摘要
纠缠是霍金（Hawking）从因果层中创造粒子成对的量子标志，用于重力和模拟系统。在现实情况下无处不在的环境热波动会强烈影响霍金过程中产生的纠缠，当环境温度与鹰温度相当时，完全熄灭了。在这项工作中，我们表明光学模拟系统对实验室中静止的热波动具有内置的鲁棒性。在这样的系统中，地平线相对于实验室框架移动，速度接近光速。我们发现，这种相对速度和色散之间的微妙相互作用保护了鹰产生的纠缠 - 使环境温度比霍金温度大的数量级高，而不会显着影响纠缠。
Entanglement is the quantum signature of Hawking's particle pair-creation from causal horizons, for gravitational and analog systems alike. Ambient thermal fluctuations, ubiquitous in realistic situations, strongly affects the entanglement generated in the Hawking process, completely extinguishing it when the ambient temperature is comparable to the Hawking temperature. In this work, we show that optical analog systems have a built-in robustness to thermal fluctuations which are at rest in the laboratory. In such systems, horizons move relative to the laboratory frame at velocities close to the speed of light. We find that a subtle interplay between this relative velocity and dispersion protects the Hawking-generated entanglement -- allowing ambient temperatures several orders of magnitude larger than the Hawking temperature without significantly affecting entanglement.
