Steady-State Emission of Quantum-Correlated Light in the Telecom Band from a Single Atom
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866918315615584256 |
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| author | Elliott, Alex Aoki, Takao Parkins, Scott |
| author_facet | Elliott, Alex Aoki, Takao Parkins, Scott |
| contents | We propose and investigate a scheme for the steady-state emission of quantum-correlated, telecom-band light from a single multilevel atom. By appropriately tuning the frequency of a pair of lasers, a two-photon transition is continually driven to an atomic excited state that emits photons at the desired wavelength. We show that resonantly coupling a cavity mode to the telecom transition can enhance the rate of emission while retaining the antibunched counting statistics that are characteristic of atomic light sources. We also explore coupling a second, independent cavity mode to the atom, which increases the telecom emission rate and introduces quantum correlations between the cavity modes. A model for the hyperfine structure of a single cesium atom is then described and numerically integrated to demonstrate the viability of implementing the scheme with a modern cavity QED system. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_22821 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Steady-State Emission of Quantum-Correlated Light in the Telecom Band from a Single Atom Elliott, Alex Aoki, Takao Parkins, Scott Quantum Physics We propose and investigate a scheme for the steady-state emission of quantum-correlated, telecom-band light from a single multilevel atom. By appropriately tuning the frequency of a pair of lasers, a two-photon transition is continually driven to an atomic excited state that emits photons at the desired wavelength. We show that resonantly coupling a cavity mode to the telecom transition can enhance the rate of emission while retaining the antibunched counting statistics that are characteristic of atomic light sources. We also explore coupling a second, independent cavity mode to the atom, which increases the telecom emission rate and introduces quantum correlations between the cavity modes. A model for the hyperfine structure of a single cesium atom is then described and numerically integrated to demonstrate the viability of implementing the scheme with a modern cavity QED system. |
| title | Steady-State Emission of Quantum-Correlated Light in the Telecom Band from a Single Atom |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2601.22821 |