Spin polarization in high density quark matter.

Henrik Bohr, Prafulla K. Panda, Constanca Providênci

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We investigate the occurrence of a ferromagnetic phase transition in high density hadronic matter (e.g., in the interior of a neutron star). This could be induced by a four-fermion interaction analogous to the one which is responsible for chiral symmetry breaking in the Nambu-Jona-Lasinio model, to which it is related through a Fierz transformation. Flavor SU(2) and flavor SU(3) quark matter are considered. A second-order phase transition is predicted at densities about 5 times the normal nuclear matter density. It is also found that in flavor SU(3) quark matter, a first-order transition from the so-called 2 flavor super-conducting phase to the ferromagnetic phase arises. The color-flavor-locked phase may be completely hidden by the FP.
Original languageEnglish
JournalInternational Journal of Modern Physics E
Volume22
Issue number4
Pages (from-to)1350019
ISSN0218-3013
DOIs
Publication statusPublished - 2013

Keywords

  • Quark matter
  • Mean-field approximation
  • Spin-polarization
  • Tensor interaction
  • Color superconductivity
  • Fierz transformation

Cite this

Bohr, Henrik ; Panda, Prafulla K. ; Providênci, Constanca. / Spin polarization in high density quark matter. In: International Journal of Modern Physics E. 2013 ; Vol. 22, No. 4. pp. 1350019.
@article{83ab23d7e63d4131978a36ebfda0bf5a,
title = "Spin polarization in high density quark matter.",
abstract = "We investigate the occurrence of a ferromagnetic phase transition in high density hadronic matter (e.g., in the interior of a neutron star). This could be induced by a four-fermion interaction analogous to the one which is responsible for chiral symmetry breaking in the Nambu-Jona-Lasinio model, to which it is related through a Fierz transformation. Flavor SU(2) and flavor SU(3) quark matter are considered. A second-order phase transition is predicted at densities about 5 times the normal nuclear matter density. It is also found that in flavor SU(3) quark matter, a first-order transition from the so-called 2 flavor super-conducting phase to the ferromagnetic phase arises. The color-flavor-locked phase may be completely hidden by the FP.",
keywords = "Quark matter, Mean-field approximation, Spin-polarization, Tensor interaction, Color superconductivity, Fierz transformation",
author = "Henrik Bohr and Panda, {Prafulla K.} and Constanca Provid{\^e}nci",
year = "2013",
doi = "10.1142/S0218301313500195",
language = "English",
volume = "22",
pages = "1350019",
journal = "International Journal of Modern Physics E",
issn = "0218-3013",
publisher = "World Scientific",
number = "4",

}

Spin polarization in high density quark matter. / Bohr, Henrik; Panda, Prafulla K.; Providênci, Constanca.

In: International Journal of Modern Physics E, Vol. 22, No. 4, 2013, p. 1350019.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Spin polarization in high density quark matter.

AU - Bohr, Henrik

AU - Panda, Prafulla K.

AU - Providênci, Constanca

PY - 2013

Y1 - 2013

N2 - We investigate the occurrence of a ferromagnetic phase transition in high density hadronic matter (e.g., in the interior of a neutron star). This could be induced by a four-fermion interaction analogous to the one which is responsible for chiral symmetry breaking in the Nambu-Jona-Lasinio model, to which it is related through a Fierz transformation. Flavor SU(2) and flavor SU(3) quark matter are considered. A second-order phase transition is predicted at densities about 5 times the normal nuclear matter density. It is also found that in flavor SU(3) quark matter, a first-order transition from the so-called 2 flavor super-conducting phase to the ferromagnetic phase arises. The color-flavor-locked phase may be completely hidden by the FP.

AB - We investigate the occurrence of a ferromagnetic phase transition in high density hadronic matter (e.g., in the interior of a neutron star). This could be induced by a four-fermion interaction analogous to the one which is responsible for chiral symmetry breaking in the Nambu-Jona-Lasinio model, to which it is related through a Fierz transformation. Flavor SU(2) and flavor SU(3) quark matter are considered. A second-order phase transition is predicted at densities about 5 times the normal nuclear matter density. It is also found that in flavor SU(3) quark matter, a first-order transition from the so-called 2 flavor super-conducting phase to the ferromagnetic phase arises. The color-flavor-locked phase may be completely hidden by the FP.

KW - Quark matter

KW - Mean-field approximation

KW - Spin-polarization

KW - Tensor interaction

KW - Color superconductivity

KW - Fierz transformation

U2 - 10.1142/S0218301313500195

DO - 10.1142/S0218301313500195

M3 - Journal article

VL - 22

SP - 1350019

JO - International Journal of Modern Physics E

JF - International Journal of Modern Physics E

SN - 0218-3013

IS - 4

ER -