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The applications of spin-based quantum sensors to measurements probing fundamental physics are surveyed. Experimental methods and technologies developed for spin-based quantum information science have rapidly advanced in recent years and these tools enable increasingly precise control and measurement of spin dynamics. Theories of beyond-the-standard-model physics predict, for example, discrete-symmetry-violating electromagnetic moments correlated with particle spins, exotic spin-dependent forces, and coupling of spins to ultralight bosonic dark-matter fields. Spin-based quantum sensors can be used to search for these myriad phenomena and offer a methodology for tests of fundamental physics that is complementary to particle colliders and large-scale particle detectors. Areas of technological development that can significantly enhance the sensitivity of spin-based quantum sensors to new physics are highlighted.Received 30 January 2023DOI:https://doi.org/10.1103/PhysRevA.108.010101©2023 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasAxionsOptical pumpingParticle dark matterQuantum measurementsQuantum metrologyTests of fundamental symmetriesZeeman effectAtomic, Molecular & OpticalParticles & FieldsQuantum Information
Kimball et al. (Mon,) studied this question.
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