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Spin - Rotation Coupling Observed in Neutron Interferometry

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arxiv 1904.07085 v1 pith:JMSPYHUU submitted 2019-04-15 quant-ph

Armin Danner , Bülent Demirel , Wenzel Kersten , Richard Wagner , Hartmut Lemmel , Stephan Sponar , Yuji Hasegawa This is my paper · ORCID
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keywords spincouplingfieldinertialmagneticneutronphaseproperties
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Einstein's theory of general relativity and quantum theory form the two major pillars of modern physics. However, certain inertial properties of a particle's intrinsic spin are inconspicuous while the inertial properties of mass are well known. Here, by performing a neutron interferometric experiment, we observe phase shifts arising as a consequence of the spin's coupling with the angular velocity of a rotating magnetic field. The resulting phase shifts linearly depend on the frequency of the rotation of the magnetic field. Our results agree well with the predictions derived from the Pauli - Schr\"odinger equation.

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  1. Inertia

    gr-qc 2025-02 conditional novelty 3.0 of 10

    Intrinsic spin couples to gravity via rotation, producing a mass-independent gravitomagnetic Stern-Gerlach force that violates free-fall universality, but at an unmeasurably small level.

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