Probing virtual axion-like particles by precision phase measurements

Moslem Zarei, Soroush Shakeri, Mohammad Sharifian, Mehdi Abdi, David J.E. Marsh, Sabino Matarrese

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We propose an experiment for detecting Axion-Like Particles (ALPs) based on the axion-photon interaction in the presence of a non-uniform magnetic field. The impact of virtual ALPs on the polarization of the photons inside a cavity is studied and a detection scheme is proposed. We find that the cavity normal modes are dispersed differently owing to their coupling to the ALPs in the presence of a background magnetic field. This birefringence, in turn, can be observed as a phase difference between the cavity polarization modes. The signal is considerably enhanced for a squeezed light source. We argue that the amplified signal allows for exclusion of a range of axion mass 6 × 10-4 eV 2 ma 2 6 × 10-3 eV even at very small axion-photon coupling constant with the potential to reach sensitivity to the QCD axion. Our scheme allows for the exclusion of a range of axion masses that has not yet been covered by other experimental techniques.

Original languageEnglish
Article number012
JournalJournal of Cosmology and Astroparticle Physics
Issue number6
Publication statusPublished - 1 Jun 2022


  • axions
  • dark matter detectors
  • dark matter experiments


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