Coherent feedback for quantum expander in gravitational wave observatories
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866911790159364096 |
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| author | Böttner, Niels Bentley, Joe Schnabel, Roman Korobko, Mikhail |
| author_facet | Böttner, Niels Bentley, Joe Schnabel, Roman Korobko, Mikhail |
| contents | The observation of gravitational waves from binary neutron star mergers offers insights into properties of extreme nuclear matter. However, their high-frequency signals in the kHz range are often masked by quantum noise of the laser light used. Here, we propose the "quantum expander with coherent feedback", a new detector design that features an additional optical cavity in the detector output and an internal squeeze operation. This approach allows to boost the sensitivity at high frequencies, at the same time providing a compact and tunable design for signal extraction. It allows to tailor the sensitivity of the detector to the specific signal frequency range. We demonstrate that our design allows to improve the sensitivity of the high-frequency detector concept NEMO (neutron star extreme matter observatory), increasing the detection rates by around 15%. Our approach promises new level of flexibility in designing the detectors aiming at high-frequency signals. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_03758 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Coherent feedback for quantum expander in gravitational wave observatories Böttner, Niels Bentley, Joe Schnabel, Roman Korobko, Mikhail Instrumentation and Detectors Instrumentation and Methods for Astrophysics General Relativity and Quantum Cosmology Quantum Physics The observation of gravitational waves from binary neutron star mergers offers insights into properties of extreme nuclear matter. However, their high-frequency signals in the kHz range are often masked by quantum noise of the laser light used. Here, we propose the "quantum expander with coherent feedback", a new detector design that features an additional optical cavity in the detector output and an internal squeeze operation. This approach allows to boost the sensitivity at high frequencies, at the same time providing a compact and tunable design for signal extraction. It allows to tailor the sensitivity of the detector to the specific signal frequency range. We demonstrate that our design allows to improve the sensitivity of the high-frequency detector concept NEMO (neutron star extreme matter observatory), increasing the detection rates by around 15%. Our approach promises new level of flexibility in designing the detectors aiming at high-frequency signals. |
| title | Coherent feedback for quantum expander in gravitational wave observatories |
| topic | Instrumentation and Detectors Instrumentation and Methods for Astrophysics General Relativity and Quantum Cosmology Quantum Physics |
| url | https://arxiv.org/abs/2403.03758 |