# Interferometric Unruh Detectors for Bose-Einstein Condensates.

@article{Gooding2020InterferometricUD, title={Interferometric Unruh Detectors for Bose-Einstein Condensates.}, author={Cisco Gooding and Steffen Biermann and Sebastian Erne and Jorma Louko and W. G. Unruh and J{\"o}rg Schmiedmayer and Silke E. Ch. Weinfurtner}, journal={Physical review letters}, year={2020}, volume={125 21}, pages={ 213603 } }

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…

## 19 Citations

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Abstract
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### Unruh and analogue Unruh temperatures for circular motion in 3+1 and 2+1 dimensions

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The Unruh effect states that a uniformly linearly accelerated observer with proper acceleration $a$ experiences Minkowski vacuum as a thermal state in the temperature $T_{\text{lin}} = a/(2\pi)$,…

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