Thermal noise in BEC-phononic gravitational wave detectors

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.

Citation

Sabín, C., Kohlrus, J., Bruschi, D. E., & Fuentes, I. (2016). Thermal noise in BEC-phononic gravitational wave detectors. EPJ Quantum Technology, 3(1), Article 8. https://doi.org/10.1140/epjqt/s40507-016-0046-4

• Journal Article Type: Article
• Acceptance Date: May 11, 2016
• Online Publication Date: May 20, 2016
• Publication Date: Dec 28, 2016
• Deposit Date: Dec 6, 2018
• Publicly Available Date: Jan 14, 2019
• Journal: EPJ Quantum Technology
• Electronic ISSN: 2196-0763
• Publisher: EDP Open
• Peer Reviewed: Peer Reviewed
• Volume: 3
• Issue: 1
• Article Number: 8
• DOI: https://doi.org/10.1140/epjqt/s40507-016-0046-4
• Public URL: https://nottingham-repository.worktribe.com/output/1379311
• Publisher URL: https://epjquantumtechnology.springeropen.com/articles/10.1140/epjqt/s40507-016-0046-4