Acoustic frequency atomic spin oscillator in the quantum regime
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866914625241481216 |
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| author | Jia, Jun Novikov, Valeriy Brasil, Tulio Brito Zeuthen, Emil Müller, Jörg Helge Polzik, Eugene S. |
| author_facet | Jia, Jun Novikov, Valeriy Brasil, Tulio Brito Zeuthen, Emil Müller, Jörg Helge Polzik, Eugene S. |
| contents | We experimentally demonstrate quantum behavior of a macroscopic atomic spin oscillator in the acoustic frequency range. Quantum back-action of the spin measurement, ponderomotive squeezing of light, and oscillator spring softening are observed at spin oscillation frequencies down to 6 kHz. Quantum noise sources characteristic of spin oscillators operating in the near-DC frequency range are identified and means for their mitigation are presented. These results constitute an important step towards quantum noise reduction and entanglement-enhanced sensing in the acoustic range using a negative-mass reference frame. In particular, the results are relevant for broadband noise reduction in gravitational wave detectors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_11029 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Acoustic frequency atomic spin oscillator in the quantum regime Jia, Jun Novikov, Valeriy Brasil, Tulio Brito Zeuthen, Emil Müller, Jörg Helge Polzik, Eugene S. Quantum Physics Atomic Physics Optics We experimentally demonstrate quantum behavior of a macroscopic atomic spin oscillator in the acoustic frequency range. Quantum back-action of the spin measurement, ponderomotive squeezing of light, and oscillator spring softening are observed at spin oscillation frequencies down to 6 kHz. Quantum noise sources characteristic of spin oscillators operating in the near-DC frequency range are identified and means for their mitigation are presented. These results constitute an important step towards quantum noise reduction and entanglement-enhanced sensing in the acoustic range using a negative-mass reference frame. In particular, the results are relevant for broadband noise reduction in gravitational wave detectors. |
| title | Acoustic frequency atomic spin oscillator in the quantum regime |
| topic | Quantum Physics Atomic Physics Optics |
| url | https://arxiv.org/abs/2303.11029 |