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arXiv · 1701.00895

From microphysics to dynamics of magnetars

Armen Sedrakian·Xu-Guang Huang·Monika Sinha·John W. Clark
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Abstract

MeV-scale magnetic fields in the interiors of magnetars suppress the pairing of neutrons and protons in the $S$-wave state. In the case of a neutron condensate the suppression is the consequence of the Pauli-paramagnetism of the neutron gas, i.e., the alignment of the neutron spins along the magnetic field. The proton $S$-wave pairing is suppressed because of the Landau diamagnetic currents of protons induced by the field. The Ginzburg-Landau and BCS theories of the critical magnetic fields for unpairing are reviewed. The macrophysical implications of the suppression (unpairing) of the condensates are discussed for the rotational crust-core coupling in magnetars and the neutrino-dominated cooling era of their thermal evolution.

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Armen Sedrakian, Xu-Guang Huang, Monika Sinha, John W. Clark. 2017-01-04. From microphysics to dynamics of magnetars. https://doi.org/10.1088/1742-6596/861/1/012025

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