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| Autori principali: | , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2410.18037 |
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| _version_ | 1866912836026892288 |
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| author | Diamandi, Hilel Hagai Luo, Yizhi Mason, David Kanmaz, Tevfik Bulent Ghosh, Sayan Pavlovich, Margaret Yoon, Taekwan Behunin, Ryan Puri, Shruti Harris, Jack G. E. Rakich, Peter T. |
| author_facet | Diamandi, Hilel Hagai Luo, Yizhi Mason, David Kanmaz, Tevfik Bulent Ghosh, Sayan Pavlovich, Margaret Yoon, Taekwan Behunin, Ryan Puri, Shruti Harris, Jack G. E. Rakich, Peter T. |
| contents | High-fidelity quantum optomechanical control of a mechanical oscillator requires the ability to perform efficient, low-noise operations on long-lived phononic excitations. Microfabricated high-overtone bulk acoustic wave resonators ($\mathrmμ$HBARs) have been shown to support high-frequency (> 10 GHz) mechanical modes with exceptionally long coherence times (> 1.5 ms), making them a compelling resource for quantum optomechanical experiments. In this paper, we demonstrate a new optomechanical system that permits quantum optomechanical control of individual high-coherence phonon modes supported by such $\mathrmμ$HBARs for the first time. We use this system to perform laser cooling of such ultra-massive (7.5 $\mathrmμ$g) high frequency (12.6 GHz) phonon modes from an occupation of ${\sim}$22 to fewer than 0.4 phonons, corresponding to laser-based ground-state cooling of the most massive mechanical object to date. Through these laser cooling experiments, no absorption-induced heating is observed, demonstrating the resilience of the $\mathrmμ$HBAR against parasitic heating. The unique features of such $\mathrmμ$HBARs make them promising as the basis for a new class of quantum optomechanical systems that offer enhanced robustness to decoherence, necessary for efficient, low-noise photon-phonon conversion. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_18037 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quantum optomechanical control of long-lived bulk acoustic phonons Diamandi, Hilel Hagai Luo, Yizhi Mason, David Kanmaz, Tevfik Bulent Ghosh, Sayan Pavlovich, Margaret Yoon, Taekwan Behunin, Ryan Puri, Shruti Harris, Jack G. E. Rakich, Peter T. Quantum Physics Optics High-fidelity quantum optomechanical control of a mechanical oscillator requires the ability to perform efficient, low-noise operations on long-lived phononic excitations. Microfabricated high-overtone bulk acoustic wave resonators ($\mathrmμ$HBARs) have been shown to support high-frequency (> 10 GHz) mechanical modes with exceptionally long coherence times (> 1.5 ms), making them a compelling resource for quantum optomechanical experiments. In this paper, we demonstrate a new optomechanical system that permits quantum optomechanical control of individual high-coherence phonon modes supported by such $\mathrmμ$HBARs for the first time. We use this system to perform laser cooling of such ultra-massive (7.5 $\mathrmμ$g) high frequency (12.6 GHz) phonon modes from an occupation of ${\sim}$22 to fewer than 0.4 phonons, corresponding to laser-based ground-state cooling of the most massive mechanical object to date. Through these laser cooling experiments, no absorption-induced heating is observed, demonstrating the resilience of the $\mathrmμ$HBAR against parasitic heating. The unique features of such $\mathrmμ$HBARs make them promising as the basis for a new class of quantum optomechanical systems that offer enhanced robustness to decoherence, necessary for efficient, low-noise photon-phonon conversion. |
| title | Quantum optomechanical control of long-lived bulk acoustic phonons |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2410.18037 |