6533b7d8fe1ef96bd126af45

RESEARCH PRODUCT

Comment on "Axion induced oscillating electric dipole moments"

Benjamin RobertsVictor V. FlambaumVictor V. FlambaumYevgeny V. Stadnik

subject

PhysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Field (physics)Atomic Physics (physics.atom-ph)010308 nuclear & particles physicsFOS: Physical sciencesOrder (ring theory)Electron01 natural sciencesElectron electric dipole momentPhysics - Atomic PhysicsDipoleElectric dipole momentHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Quantum mechanics0103 physical sciencesAnomaly (physics)Atomic physics010306 general physicsAxionAstrophysics - Cosmology and Nongalactic Astrophysics

description

In the recent work [Phys. Rev. D 91, 111702(R) (2015)], C. Hill concludes that the axion electromagnetic anomaly induces an oscillating electron electric dipole moment of frequency $m_a$ and strength $\sim 10^{-32}~e$ cm, in the limit $v/c \to 0$ for the axion field. Here, we demonstrate that a proper treatment of this problem in the lowest order yields $\textit{no}$ electric dipole moment of the electron in the same limit. Instead, oscillating electric dipole moments of atoms and molecules are produced by different mechanisms.

10.1103/physrevd.95.058701http://arxiv.org/abs/1507.05265