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arXiv · 1505.01302

Thermal noise in BEC-phononic gravitational wave detectors

Carlos Sabín·Jan Kohlrus·David Edward Bruschi·Ivette Fuentes
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Abstract

Quasiparticles in a Bose-Einstein condensate are sensitive to space-time distortions. Gravitational waves can induce transformations on the state of phonons that can be observed through quantum state discrimination techniques. We show that this method is highly robust to thermal noise and depletion. We derive a bound on the strain sensitivity that shows that the detection of waves in the kHz regime is not significantly affected by temperature in a wide range of parameters that are well within current experimental reach.

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Carlos Sabín, Jan Kohlrus, David Edward Bruschi, Ivette Fuentes. 2015-05-06. Thermal noise in BEC-phononic gravitational wave detectors. https://doi.org/10.1140/epjqt/s40507-016-0046-4

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