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Engineering synthetic gauge fields through the coupling phases in cavity magnonics

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dc.contributor.authorGardin, A.
dc.contributor.authorBourcin, G.
dc.contributor.authorBourhill, J.
dc.contributor.authorVlaminck, V.
dc.contributor.authorPerson, C.
dc.contributor.authorFumeaux, C.
dc.contributor.authorTettamanzi, G.C.
dc.contributor.authorCastel, V.
dc.date.issued2024
dc.description.abstractCavity magnonics, which studies the interaction of light with magnetic systems in a cavity, is a promising platform for quantum transducers and quantum memories. At microwave frequencies, the coupling between a cavity photon and a magnon, the quasiparticle of a spin-wave excitation, is a consequence of the Zeeman interaction between the cavity’s magnetic field and the magnet’s macroscopic spin. For each photon-magnon interaction, a coupling phase factor exists, and this is often neglected in simple systems; however, in “loop-coupled” systems, where there are at least as many couplings as modes, the coupling phases become relevant for the physics and lead to synthetic gauge fields. We present experimental evidence of the existence of such coupling phases by considering two spheres made of yttrium-iron-garnet and two different re-entrant cavities. We predict numerically the values of the coupling phases, and we find good agreement between the theory and the experimental data. These results show that in cavity magnonics, one can engineer synthetic gauge fields, which can be useful for cavity-mediated coupling and engineering dark-mode physics.
dc.description.statementofresponsibilityAlan Gardin, Guillaume Bourcin, Jeremy Bourhill, Vincent Vlaminck, Christian Person, Christophe Fumeaux, Giuseppe C. Tettamanzi, and Vincent Castel
dc.identifier.citationPhysical Review Applied, 2024; 21(6):064033-1-064033-14
dc.identifier.doi10.1103/physrevapplied.21.064033
dc.identifier.issn2331-7019
dc.identifier.issn2331-7019
dc.identifier.orcidGardin, A. [0000-0002-9825-9963]
dc.identifier.orcidFumeaux, C. [0000-0001-6831-7213]
dc.identifier.orcidTettamanzi, G.C. [0000-0002-3209-0632]
dc.identifier.urihttps://hdl.handle.net/2440/142875
dc.language.isoen
dc.publisherAmerican Physical Society (APS)
dc.relation.granthttp://purl.org/au-research/grants/arc/CE170100009
dc.relation.granthttp://purl.org/au-research/grants/arc/CE200100008
dc.rights© 2024 American Physical Society
dc.source.urihttp://dx.doi.org/10.1103/physrevapplied.21.064033
dc.subjectCavity magnonics
dc.titleEngineering synthetic gauge fields through the coupling phases in cavity magnonics
dc.typeJournal article
pubs.publication-statusPublished

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