Massive graviton dark matter searches with long-baseline atom interferometers

• URL: http://arxiv.org/abs/2412.14282v1
• Date: Wed, 18 Dec 2024 19:21:51 GMT
• Title: Massive graviton dark matter searches with long-baseline atom interferometers
• Authors: Diego Blas, John Carlton, Christopher McCabe,
• Abstract summary: This work investigates the sensitivity of atom interferometers to spin-2 ULDM by considering several frameworks for massive gravity. We find that coherent oscillations of the spin-2 ULDM field induce a measurable phase shift through three distinct channels. Atom interferometers uniquely probe all of these effects, while providing sensitivity to a different mass range from laser interferometers.
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• Abstract: Atom interferometers offer exceptional sensitivity to ultra-light dark matter (ULDM) through their precise measurement of phenomena acting on atoms. While previous work has established their capability to detect scalar and vector ULDM, their potential for detecting spin-2 ULDM remains unexplored. This work investigates the sensitivity of atom interferometers to spin-2 ULDM by considering several frameworks for massive gravity: a Lorentz-invariant Fierz-Pauli case and two Lorentz-violating scenarios. We find that coherent oscillations of the spin-2 ULDM field induce a measurable phase shift through three distinct channels: coupling of the scalar mode to atomic energy levels, and vector and tensor effects that modify the propagation of atoms and light. Atom interferometers uniquely probe all of these effects, while providing sensitivity to a different mass range from laser interferometers. Our results demonstrate the potential of atom interferometers to advance the search for spin-2 dark matter through accessing unexplored parameter space and uncovering new interactions between ULDM and atoms.

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