Enhanced two-photon sources in a cavity-coupled two-atom system

• URL: http://arxiv.org/abs/2607.06932v1
• Date: Wed, 08 Jul 2026 02:52:05 GMT
• Title: Enhanced two-photon sources in a cavity-coupled two-atom system
• Abstract summary: We propose a component-selective scheme for improving two-photon sources in a cavity-coupled two-atom system.<n>By controlling the atomic detunings and driving phase, the system can be tailored toward optimized cavity-field two-photon blockade or strongly correlated fluorescence photon-pair emission.<n>This approach provides a route toward high-quality and versatile two-photon sources, with potential applications in few-photon quantum optics and quantum information processing.
• Score: 6.376387000101135
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a component-selective scheme for improving two-photon sources in a cavity-coupled two-atom system, where a single cavity mode interacts with two two-level atoms driven by phase-controlled classical fields of the same frequency. By controlling the atomic detunings and driving phase, the system can be tailored toward optimized cavity-field two-photon blockade or strongly correlated fluorescence photon-pair emission. When the two-cavity-photon component is enhanced, the cavity field exhibits optimized two-photon blockade with simultaneous suppression of unwanted one- and three-photon components at a comparable two-photon population. In another parameter regime, strongly correlated fluorescence photon pairs can also be generated from the two atoms by selecting the double-atomic-excitation component in the same two-excitation manifold. This approach provides a route toward high-quality and versatile two-photon sources, with potential applications in few-photon quantum optics and quantum information processing.

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