Thermal noise in BEC-phononic gravitational wave detectors

  title={Thermal noise in BEC-phononic gravitational wave detectors},
  author={Carlos Sab{\'i}n and Jan Kohlrus and David Edward Bruschi and Ivette Fuentes},
  journal={EPJ Quantum Technology},
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… 
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