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Detecting Dark Domain Walls

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arxiv 2308.01179 v1 pith:IXSTVJXT submitted 2023-08-02 gr-qc astro-ph.COhep-exquant-ph

Detecting Dark Domain Walls

classification gr-qc astro-ph.COhep-exquant-ph
keywords domainwallsdarkexperimentmatterscalaraffectsbackground
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Light scalar fields, with double well potentials and direct matter couplings, undergo density driven phase transitions, leading to the formation of domain walls. Such theories could explain dark energy, dark matter or source the nanoHz gravitational-wave background. We describe an experiment that could be used to detect such domain walls in a laboratory experiment, solving for the scalar field profile, and showing how the domain wall affects the motion of a test particle. We find that, in currently unconstrained regions of parameter space, the domain walls leave detectable signatures.

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Cited by 1 Pith paper

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  1. Quantum corrections to symmetron fifth-force profiles

    hep-th 2025-08 unverdicted novelty 6.0

    A Green's function method computes leading-order quantum corrections to symmetron fifth-force profiles near spherical sources in the planar limit, suggesting weaker forces than classical expectations for some parameters.