Solutions to axion electromagnetodynamics and new search strategies of sub-\(\mu\)eV axion

DOI10.1007/JHEP03(2023)088arXiv2211.06847MaRDI QIDQ6158587

No author found.

Publication date: 31 May 2023

Published in: Journal of High Energy Physics (Search for Journal in Brave)

Abstract: The Witten effect implies the electromagnetic interactions between axions and magnetic monopoles. Based on the quantum electromagnetodynamics, a generic low-energy axion-photon effective field theory was built by introducing two four-potentials (

A^{m} u

and

B^{m} u

) to describe a photon. More anomalous axion-photon interactions and couplings (

g_{a A A}

,

g_{a B B}

and

g_{a A B}

) arise in contrary to the ordinary axion coupling

g_{a g a m m a g a m m a} a F^{m u u} i l d e F_{m u u}

. As a consequence, the conventional axion Maxwell equations are further modified. We properly solve the new axion-modified Maxwell equations and obtain the axion-induced electromagnetic fields given a static electric or magnetic field. It turns out that the dominant couplings

g_{a A B}

and

g_{a B B}

can be probed in the presence of external magnetic field and electric field, respectively. The induced oscillating magnetic fields are always suppressed compared with the electric fields for the axions with large Compton wavelengths. This is contrary to the situation in conventional experiments searching for the oscillating magnetic fields induced by sub-

m u

eV axions. Thus, we propose new strategies to measure the new couplings for sub-

m u

eV axion in haloscope experiments.

Full work available at URL: https://arxiv.org/abs/2211.06847

zbMATH Keywords

axions and ALPs specific BSM phenomenology

Mathematics Subject Classification ID

Quantum theory (81-XX)

Cites Work