Propagation of axions in a strongly magnetized mediumстатья
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Дата последнего поиска статьи во внешних источниках: 22 февраля 2016 г.
Аннотация:The polarization operator of an axion in a degenerate gas of electrons occupying the ground-state Landau level in superstrong magnetic fields H >> H_0 = m_e^2c^3/e\hbar
= 4.41\times 10^{13} G is investigated in a model with a tree-level axion-electron coupling. It is shown that a dynamic axion mass, which can fall within the allowed range of values 10^{-5} eV \lesssim m_a \lesssim 10^{-2} eV, is generated under the conditions of strongly magnetized neutron stars. As a result, the dispersion relation for axions is appreciably different from that in a vacuum.