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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2212.06307 |
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| _version_ | 1866909167506161664 |
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| author | Ben-Asher, Anael Fernández-Domínguez, Antonio I. Feist, Johannes |
| author_facet | Ben-Asher, Anael Fernández-Domínguez, Antonio I. Feist, Johannes |
| contents | Single-photon sources are in high demand for quantum information applications. A paradigmatic way to achieve single-photon emission is through anharmonicity in the energy levels, such that the absorption of a single photon from a coherent drive shifts the system out of resonance and prevents absorption of a second one. We identify a novel mechanism for single-photon emission through non-Hermitian anharmonicity, i.e., anharmonicity in the losses instead of in the energy levels. We demonstrate the mechanism in two types of systems, including a feasible setup consisting of a hybrid metallodielectric cavity weakly coupled to a two-level emitter, and show that it induces high-purity single-photon emission at high repetition rates. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_06307 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Non-Hermitian Anharmonicity Induces Single-Photon Emission Ben-Asher, Anael Fernández-Domínguez, Antonio I. Feist, Johannes Quantum Physics Single-photon sources are in high demand for quantum information applications. A paradigmatic way to achieve single-photon emission is through anharmonicity in the energy levels, such that the absorption of a single photon from a coherent drive shifts the system out of resonance and prevents absorption of a second one. We identify a novel mechanism for single-photon emission through non-Hermitian anharmonicity, i.e., anharmonicity in the losses instead of in the energy levels. We demonstrate the mechanism in two types of systems, including a feasible setup consisting of a hybrid metallodielectric cavity weakly coupled to a two-level emitter, and show that it induces high-purity single-photon emission at high repetition rates. |
| title | Non-Hermitian Anharmonicity Induces Single-Photon Emission |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2212.06307 |