Quantum Orbital-State Control of a Neutral Nitrogen-Vacancy Center at Millikelvin Temperatures
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866909985138540544 |
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| author | Kurokawa, Hodaka Nakazato, Shintaro Makino, Toshiharu Kato, Hiromitsu Onoda, Shinobu Sekiguchi, Yuhei Kosaka, Hideo |
| author_facet | Kurokawa, Hodaka Nakazato, Shintaro Makino, Toshiharu Kato, Hiromitsu Onoda, Shinobu Sekiguchi, Yuhei Kosaka, Hideo |
| contents | A neutral nitrogen-vacancy center (NV$^0$) is promising for realizing strong coupling with a single microwave photon due to its large electric field sensitivity, although it is susceptible to environmental phonon noise at 5 K. Decreasing the temperature to 15 mK results in a tenfold increase in orbital relaxation time compared to that at 5 K. Dynamical decoupling pulses significantly increase the orbital coherence time to around 1.8 $μ$s, representing a 30-fold improvement compared to that without decoupling pulses. Based on these results, a single NV$^0$ can reach the strong coupling regime when coupled with a high-impedance microwave resonator, thus opening up the possibility of microwave quantum electrodynamics using a single optically-active defect center in diamond. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_17187 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quantum Orbital-State Control of a Neutral Nitrogen-Vacancy Center at Millikelvin Temperatures Kurokawa, Hodaka Nakazato, Shintaro Makino, Toshiharu Kato, Hiromitsu Onoda, Shinobu Sekiguchi, Yuhei Kosaka, Hideo Quantum Physics Mesoscale and Nanoscale Physics A neutral nitrogen-vacancy center (NV$^0$) is promising for realizing strong coupling with a single microwave photon due to its large electric field sensitivity, although it is susceptible to environmental phonon noise at 5 K. Decreasing the temperature to 15 mK results in a tenfold increase in orbital relaxation time compared to that at 5 K. Dynamical decoupling pulses significantly increase the orbital coherence time to around 1.8 $μ$s, representing a 30-fold improvement compared to that without decoupling pulses. Based on these results, a single NV$^0$ can reach the strong coupling regime when coupled with a high-impedance microwave resonator, thus opening up the possibility of microwave quantum electrodynamics using a single optically-active defect center in diamond. |
| title | Quantum Orbital-State Control of a Neutral Nitrogen-Vacancy Center at Millikelvin Temperatures |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2411.17187 |