Strongly coupled atom-cavity systems under boundary modulation: simulating gravitational-wave effects

• URL: http://arxiv.org/abs/2608.19333v1
• Date: Wed, 19 Aug 2026 18:00:34 GMT
• Title: Strongly coupled atom-cavity systems under boundary modulation: simulating gravitational-wave effects
• Abstract summary: One of the proposed platforms in which both quantum and general relativistic effects can become observable is an atom interacting with the electromagnetic field in a gravitational-wave background.<n>We analyze the impact of this modulation on atom-field interactions in the strong atom-cavity coupling regime, where Rabi oscillations occur.<n>This establishes a realistic and experimentally accessible platform for probing analogue general relativistic effects in quantum optical systems.
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• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: One of the proposed platforms in which both quantum and general relativistic effects can become observable is an atom interacting with the electromagnetic field in a gravitational-wave background. The periodic modulation of field modes induced by variations of the spacetime metric modifies the atomic emission spectrum. Notably, the temporal modulation of the mode-frequency induced by a plane gravitational wave can be simulated through modulated boundary conditions, such as moving cavity mirrors. We analyze the impact of this modulation on atom-field interactions in the strong atom-cavity coupling regime, where Rabi oscillations occur. We show analytically that the modulation is resonantly enhanced, leading to measurable imprints in the atomic transition probability. This establishes a realistic and experimentally accessible platform for probing analogue general relativistic effects in quantum optical systems.

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