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New constraints on exotic spin-dependent interactions with an ensemble-NV-diamond magnetometer

ABSTRACT: ABSTRACT Laboratory search of exotic interactions is crucial for exploring physics beyond the standard model. We report new experimental constraints on two exotic spin-dependent interactions at the micrometer scale based on ensembles of nitrogen-vacancy (NV) centers in diamond. A thin layer of NV electronic spin ensembles is synthesized as the solid-state spin quantum sensor, and a lead sphere is taken as the interacting nucleon source. Our result establishes new bounds for two types of exotic spin interactions at the micrometer scale. For an exotic parity-odd spin- and velocity-dependent interaction, improved bounds are set within the force range from 5 to 500 μm. The upper limit of the corresponding coupling constant A laboratory search of exotic spin-dependent interactions was performed using an ensemble of nitrogen-vacancy centers in diamond, and new constraints at the micrometer scale were established.

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PROVIDER: S-EPMC10232048 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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