The manipulation of photon blockade via Newtonian gravity
Abstract We theoretically investigate the model of a quadratically coupled optomechanical system with a Newtonian gravitational potential in the weak-driving regime, where the optical cavity is driven by an external laser. The steady state of the whole system is treated in the framework of a few-pho...
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| Format: | Article |
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Nature Portfolio
2024-06-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-64206-1 |
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| _version_ | 1832585690074841088 |
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| author | Zhen Li Wang-Jun Lu Yun-Lan Zuo |
| author_facet | Zhen Li Wang-Jun Lu Yun-Lan Zuo |
| author_sort | Zhen Li |
| collection | DOAJ |
| description | Abstract We theoretically investigate the model of a quadratically coupled optomechanical system with a Newtonian gravitational potential in the weak-driving regime, where the optical cavity is driven by an external laser. The steady state of the whole system is treated in the framework of a few-photon subspace. We find that the conventional single-photon blockade, nonstandard types of single-photon blockade, two-photon blockade, and photon-induced tunneling can be induced by gravity when the quadratic optomechanical coupling strength remains constant. Moreover, we find that gravitational potential energy can compensate for the lack of quadratic optomechanical coupling for observation photon blockade. In particular, the photon stream with super-Poissonian distribution can be converted into a sub-Poissonian, antibunching photon stream by changing the driving detuning when the gravitational potential energy is included. These results show that the gravity has potential for realizing the manipulation of photon blockade in a quadratically coupled optomechanical system. |
| format | Article |
| id | doaj-art-1bad4683f3a94a5f82e45b0c432a3ef7 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-1bad4683f3a94a5f82e45b0c432a3ef72025-01-26T12:35:11ZengNature PortfolioScientific Reports2045-23222024-06-0114111210.1038/s41598-024-64206-1The manipulation of photon blockade via Newtonian gravityZhen Li0Wang-Jun Lu1Yun-Lan Zuo2Department of Physics, Shaoyang UniversityDepartment of Physics, Zhejiang Institute of Modern Physics, Zhejiang UniversityKey Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal UniversityAbstract We theoretically investigate the model of a quadratically coupled optomechanical system with a Newtonian gravitational potential in the weak-driving regime, where the optical cavity is driven by an external laser. The steady state of the whole system is treated in the framework of a few-photon subspace. We find that the conventional single-photon blockade, nonstandard types of single-photon blockade, two-photon blockade, and photon-induced tunneling can be induced by gravity when the quadratic optomechanical coupling strength remains constant. Moreover, we find that gravitational potential energy can compensate for the lack of quadratic optomechanical coupling for observation photon blockade. In particular, the photon stream with super-Poissonian distribution can be converted into a sub-Poissonian, antibunching photon stream by changing the driving detuning when the gravitational potential energy is included. These results show that the gravity has potential for realizing the manipulation of photon blockade in a quadratically coupled optomechanical system.https://doi.org/10.1038/s41598-024-64206-1 |
| spellingShingle | Zhen Li Wang-Jun Lu Yun-Lan Zuo The manipulation of photon blockade via Newtonian gravity Scientific Reports |
| title | The manipulation of photon blockade via Newtonian gravity |
| title_full | The manipulation of photon blockade via Newtonian gravity |
| title_fullStr | The manipulation of photon blockade via Newtonian gravity |
| title_full_unstemmed | The manipulation of photon blockade via Newtonian gravity |
| title_short | The manipulation of photon blockade via Newtonian gravity |
| title_sort | manipulation of photon blockade via newtonian gravity |
| url | https://doi.org/10.1038/s41598-024-64206-1 |
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