Enhanced Dark Matter Quantum Sensing via Phase-Space Geometric Interferometry

Abstract:We propose a quantum sensing protocol for coupled qubit-oscillator systems that enhances the sensitivity by exploiting a geometric phase for dark matter searches. Instead of letting the cavity evolve freely under a weak dark matter background, we combine large coherent displacements and squeezing operations within the evolution protocol, thereby mapping the signal onto an enhanced quantum phase determined by the geometric area enclosed in phase space. Relative to the conventional free-evolution scheme, the protocol enhances the quantum Fisher information and improves the projected sensitivities to cavity-based detection of dark-photon and axion dark matter.

arXiv:2603.23599 [hep-ph]

(or arXiv:2603.23599v3 [hep-ph] for this version)

https://doi.org/10.48550/arXiv.2603.23599 Focus to learn more arXiv-issued DOI via DataCite

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