Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-09-03
PROCEEDINGS OF THE CONFERENCE IN HONOUR OF MURRAY GELL-MANN'S 80TH BIRTHDAY: Quantum Mechanics, Elementary Particles, Quantum
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages
Scientific paper
10.1142/9789814335614_0054
Pseudoscalar-photon interactions were proposed in the study of the relations among equivalence principles. The interaction of pseudoscalar axion with gluons was proposed as a way to solve the strong CP problem. Subsequent proposal of axion as a dark matter candidate has been a focus of search. Motivation from superstring theories add to its importance. After a brief introduction and historical review, we present (i) the current status of our optical experiment using high-finesse Fabry-Perot resonant cavity - Q & A experiment - to detect pseudoscalar-photon interactions, (ii) the constraints on pseudoscalar-photon interactions from astrophysical and cosmological observations on cosmic polarization rotation, and (iii) theoretical models of non-minimal interactions of gravitational, electromagnetic and pseudoscalar (axion) fields, and their relevance to cosmology.
Balakin Alexander B.
Mei Hsien-Hao
Ni Wei-Tou
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