Steady-State Emission of Quantum-Correlated Light in the Telecom Band from a Single Atom

• URL: http://arxiv.org/abs/2601.22821v1
• Date: Fri, 30 Jan 2026 10:46:43 GMT
• Title: Steady-State Emission of Quantum-Correlated Light in the Telecom Band from a Single Atom
• Authors: Alex Elliott, Takao Aoki, Scott Parkins,
• Abstract summary: We show that resonantly coupling a cavity mode to the telecom transition can enhance the rate of emission.<n>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.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: 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.

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