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A formalism for magnon gravitational wave detectors

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arxiv 2004.04646 v3 pith:NLNZY53V submitted 2020-04-08 gr-qc hep-phhep-th

classification gr-qchep-phhep-th
keywords gravitationalwavemagnonmagnonswavesdetectorformalismfrequency
verification ladder T0 review T1 audit T2 compute T3 formal
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In order to detect high frequency gravitational waves, we need a new detection method. In this paper, we develop a formalism for a gravitational wave detector using magnons in a cavity. Using Fermi normal coordinates and taking the non-relativistic limit, we obtain a Hamiltonian for magnons in gravitational wave backgrounds. Given the Hamiltonian, we show how to use the magnons for detecting high frequency gravitational waves. Furthermore, as a demonstration of the magnon gravitational wave detector, we give upper limits on GHz gravitational waves by utilizing known results of magnon experiments for an axion dark matter search.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Binary gravitational waves as probes of quantum graviton states

    gr-qc 2025-10 reject novelty 6.0 of 10

    Gravitational waves from binaries can, in principle, carry sub-Poissonian graviton statistics inherited from a squeezed primordial vacuum, offering a new signature of quantum gravity.

  2. Toward graviton detection via photon-graviton quantum state conversion

    quant-ph 2025-07 conditional novelty 4.0 of 10

    Photon-to-graviton conversion in a magnetic field is shown to be enhanced by squeezed photon states and by the squeezed vacuum of primordial gravitational waves, with entanglement generation proposed as a quantum signature.

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