Chiral asymmetry in relativistic matter in a magnetic field

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We show that the normal phase of dense relativistic matter in a magnetic field is characterized by a nonzero relative shift of the longitudinal momenta in the dispersion relations of the left-handed and right-handed fermions. The presence of such a shift in the ground state does not break any symmetries of the action. To leading order, the corresponding parameter, dubbed the chiral shift, is linear in the coupling constant. Because of the chiral shift, a dynamical contribution to the axial current is induced. The induced axial current and the shift of the Fermi surfaces of the opposite chirality 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.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages799-802
Number of pages4
Volume1182
DOIs
StatePublished - 2009
Event10th International Conference on Intersections of Particle and Nuclear Physics - San Diego, CA, United States
Duration: May 26 2009May 31 2009

Other

Other10th International Conference on Intersections of Particle and Nuclear Physics
CountryUnited States
CitySan Diego, CA
Period5/26/095/31/09

Fingerprint

asymmetry
shift
magnetic fields
fermions
chirality
ionic collisions
Fermi surfaces
transport properties
momentum
stars
ground state
symmetry

Keywords

  • Axial current
  • Dense matter
  • Magnetic field
  • Neutron stars
  • Pulsar kicks

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Chiral asymmetry in relativistic matter in a magnetic field. / Shovkovy, Igor.

AIP Conference Proceedings. Vol. 1182 2009. p. 799-802.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Shovkovy, I 2009, Chiral asymmetry in relativistic matter in a magnetic field. in AIP Conference Proceedings. vol. 1182, pp. 799-802, 10th International Conference on Intersections of Particle and Nuclear Physics, San Diego, CA, United States, 5/26/09. https://doi.org/10.1063/1.3293929
Shovkovy, Igor. / Chiral asymmetry in relativistic matter in a magnetic field. AIP Conference Proceedings. Vol. 1182 2009. pp. 799-802
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AB - We show that the normal phase of dense relativistic matter in a magnetic field is characterized by a nonzero relative shift of the longitudinal momenta in the dispersion relations of the left-handed and right-handed fermions. The presence of such a shift in the ground state does not break any symmetries of the action. To leading order, the corresponding parameter, dubbed the chiral shift, is linear in the coupling constant. Because of the chiral shift, a dynamical contribution to the axial current is induced. The induced axial current and the shift of the Fermi surfaces of the opposite chirality 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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