Chiral asymmetry of the Fermi surface in dense relativistic matter in a magnetic field

Details Chiral asymmetry of the Fermi surface in dense relativistic matter in a magnetic field Chiral asymmetry of the Fermi surface in dense relativistic matter in a magnetic field

2009-04-14

arxiv.org/abs/0904.2164v2

Phys.Rev.C80:032801,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, no figures; v2: to match published version

Scientific paper

10.1103/PhysRevC.80.032801

It is revealed that in dense relativistic matter in a magnetic field, there exists a contribution to the axial current associated with a relative shift of the longitudinal momenta in the dispersion relations of opposite chirality fermions. Unlike the topological contribution in the axial current at the lowest Landau level, recently discussed in the literature, the dynamical one appears only in interacting matter and affects the fermions in all Landau levels, including those around the Fermi surface. The induced axial current and the shift of the Fermi surfaces of the left-handed and right-handed fermions are expected to play an important role in transport and emission properties of matter in various types of compact stars as well as in heavy ion collisions.

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