Quantum Resonator as a Directional Quantum Emitter
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866914469784846336 |
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| author | Solak, Luiz O. R. Vermes, Bruno L. de Castro, Antonio S. M. Villas-Boas, Celso J. Rossatto, Daniel Z. |
| author_facet | Solak, Luiz O. R. Vermes, Bruno L. de Castro, Antonio S. M. Villas-Boas, Celso J. Rossatto, Daniel Z. |
| contents | Single-photon sources are essential for testing fundamental physics and for the development of quantum technologies. In this work a single-photon source is investigated, based on a two-photon Jaynes-Cummings system, where the resonator works as the quantum emitter rather than the two-level system. This role reversal provides certain advantages, such as robustness against losses from the two-level system (e.g., dephasing), as it remains in its ground state throughout the entire dynamics. This provides higher efficiency, purity, and indistinguishability compared to sources based on the usual Jaynes-Cummings model under the same parameter conditions in both models. Another advantage of this system is the possibility of direct conversion of a coherent excitation pulse with one photon on average to a single-photon pulse with efficiency, purity, and indistinguishability above $90\%$. Since the entire excitation pulse is consumed in the generation of a single photon, the system also minimizes energy waste. The potential for implementing the two-photon JC model across different platforms expands the possibilities for controlled single-photon generation in applications in quantum information processing and computation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_09298 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum Resonator as a Directional Quantum Emitter Solak, Luiz O. R. Vermes, Bruno L. de Castro, Antonio S. M. Villas-Boas, Celso J. Rossatto, Daniel Z. Quantum Physics Single-photon sources are essential for testing fundamental physics and for the development of quantum technologies. In this work a single-photon source is investigated, based on a two-photon Jaynes-Cummings system, where the resonator works as the quantum emitter rather than the two-level system. This role reversal provides certain advantages, such as robustness against losses from the two-level system (e.g., dephasing), as it remains in its ground state throughout the entire dynamics. This provides higher efficiency, purity, and indistinguishability compared to sources based on the usual Jaynes-Cummings model under the same parameter conditions in both models. Another advantage of this system is the possibility of direct conversion of a coherent excitation pulse with one photon on average to a single-photon pulse with efficiency, purity, and indistinguishability above $90\%$. Since the entire excitation pulse is consumed in the generation of a single photon, the system also minimizes energy waste. The potential for implementing the two-photon JC model across different platforms expands the possibilities for controlled single-photon generation in applications in quantum information processing and computation. |
| title | Quantum Resonator as a Directional Quantum Emitter |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2505.09298 |