The Unruh effect predicts a thermal response for an accelerated detector moving through the vacuum. Here we propose an interferometric scheme to observe an analogue of the circular Unruh effect using a localized laser coupled to a Bose-Einstein condensate (BEC). Quantum fluctuations in the condensate are governed by an effective relativistic field theory, and as demonstrated, the coupled laser field acts as an effective Unruh-DeWitt detector thereof. The effective speed of light is lowered by 12 orders of magnitude to the sound velocity in the BEC. For detectors traveling close to the sound speed, observation of the Unruh effect in the analogue system becomes experimentally feasible.

中文翻译：

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玻色-爱因斯坦凝聚物的干涉式Unruh检测器

Unruh效应预测了加速探测器通过真空的热响应。在这里，我们提出了一种干涉测量方案，以使用耦合到玻色-爱因斯坦凝聚物（BEC）的局部激光观察圆形Unruh效应的类似物。冷凝液中的量子涨落由有效的相对论场理论控制，并且如所证明的，耦合的激光场充当其有效的Unruh-DeWitt检测器。光的有效速度比BEC中的声速降低了12个数量级。对于以接近声速行进的探测器，在模拟系统中观察Unruh效应在实验上变得可行。