Spin polarization and chiral condensation in a ( 2 + 1 )-flavor Nambu�Jona-Lasinio model at finite temperature and baryon chemical potential

Show simple item record

dc.contributor.author Abhishek, Aman
dc.contributor.author Das, Arpan
dc.contributor.author Mishra, Hiranmaya
dc.contributor.author Mohapatra, Ranjita K.
dc.date.accessioned 2020-02-22T06:10:42Z
dc.date.available 2020-02-22T06:10:42Z
dc.date.issued 2019-12
dc.identifier.citation Abhishek, Aman; Das, Arpan; Mishra, Hiranmaya and Mohapatra, Ranjita K., "Spin polarization and chiral condensation in a ( 2 + 1 )-flavor Nambu�Jona-Lasinio model at finite temperature and baryon chemical potential", Physical Review D, DOI: 10.1103/PhysRevD.100.114012, vol. 100, no. 11, Dec. 2019. en_US
dc.identifier.issn 2470-0010
dc.identifier.issn 2470-0029
dc.identifier.uri https://doi.org/10.1103/PhysRevD.100.114012
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/5067
dc.description.abstract We investigate the ferromagnetic (spin polarization) condensation in (2�1)-flavor Nambu�Jona-Lasinio (NJL) model with nonzero current quark masses at finite temperature and density, which may berelevant in the context of neutron stars. The spin polarization condensation arises due to a tensor-typeinteraction that may be generated due to nonperturbative effects in QCD. In this investigation, we study theinterplay between the chiral condensate and spin polarization condensation for different values of tensorcoupling. Spin polarization in the case of (2�1) flavor is different from two-flavor case because of anadditionalF8?h ???z?8?ialong with aF3?h ???z?3?icondensate associated with the?8flavor generator.We find nonzero values of the two spin condensates in the chirally restored phase. Beyond a certaintemperature, the spin polarization condensates vanish for any value of quark chemical potential. The spincondensates affect the chiral phase transition, quark masses, and quark dispersion relation. Thermodynamicbehaviors ofF3andF8are found to be different, and they affect the quark masses differently. We discussthe phase diagram in the temperature and chemical potential plane in the presence of such condensates.
dc.description.statementofresponsibility by Aman Abhishek, Arpan Das, Hiranmaya Mishra and Ranjita K. Mohapatra
dc.format.extent vol. 100, no. 11
dc.language.iso en_US en_US
dc.publisher American Physical Society en_US
dc.title Spin polarization and chiral condensation in a ( 2 + 1 )-flavor Nambu�Jona-Lasinio model at finite temperature and baryon chemical potential en_US
dc.type Article en_US
dc.relation.journal Physical Review D


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Digital Repository


Browse

My Account