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@ARTICLE{Egge:631956,
      author       = {Egge, Jacob and Meyer, Manuel},
      title        = {{S}ensitivity of a {G}igahertz {F}abry-{P}érot {R}esonator
                      for {A}xion {D}ark {M}atter {D}etection},
      reportid     = {PUBDB-2025-02071, arXiv:2506.03091},
      year         = {2025},
      note         = {10 pages, 8 figures, 1 table. Submitted},
      abstract     = {Axions are hypothetical pseudo-Nambu Goldstone bosons that
                      could explain the observed cold dark matter density and
                      solve the strong CP problem of quantum chromodynamics (QCD).
                      Haloscope experiments commonly employ resonant cavities to
                      search for a conversion of axion dark matter into photons in
                      external magnetic fields. As the expected signal power
                      degrades with increasing frequency, this approach becomes
                      challenging at frequencies beyond tens of Gigahertz. Here,
                      we propose a novel haloscope design based on an open
                      Fabry-Pérot resonator. Operating a small-scale resonator at
                      cryogenic temperatures and at modest magnetic fields should
                      already lead to an unparalleled sensitivity for photon-axion
                      couplings $g_{aγ} \gtrsim
                      3\times10^{-12}\,\mathrm{GeV}^{-1}$ at 35GHz. We demonstrate
                      how this sensitivity could be further improved using
                      graded-phase mirrors and sketch possibilities to probe
                      benchmark models of the QCD axion.},
      cin          = {ALPS},
      cid          = {I:(DE-H253)ALPS-20130318},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / DFG
                      project G:(GEPRIS)390833306 - EXC 2121: Quantum Universe
                      (390833306) / AxionDM - Searching for axion and
                      axion-like-particle dark matter in the laboratory and with
                      high-energy astrophysical observations (948689)},
      pid          = {G:(DE-HGF)POF4-611 / G:(GEPRIS)390833306 /
                      G:(EU-Grant)948689},
      experiment   = {EXP:(DE-H253)ALPS-20150101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2506.03091},
      howpublished = {arXiv:2506.03091},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2506.03091;\%\%$},
      url          = {https://bib-pubdb1.desy.de/record/631956},
}