Abstract
The phase diagram of two-color QCD with non-zero chiral chemical potential is studied by means of lattice simulation. We focus on the influence of a chiral chemical potential on the confinement/deconfinement phase transition and the breaking/restoration of chiral symmetry. The simulation is carried out with dynamical staggered fermions without rooting. The dependences of the Polyakov loop, the chiral condensate and the corresponding susceptibilities on the chiral chemical potential and the temperature are presented. The critical temperature is observed to increase with increasing chiral chemical potential.
Highlights
JHEP06(2015)094 theoretically studied and proposed to be a signal of the transient existence of liberated quarks [12, 13, 18]
It is seen that the temperature of both phase transitions increases with the chiral chemical potential
One sees that the phase transition becomes sharper for increasing chiral chemical potential
Summary
We have performed simulations with the SU(2) gauge group. We employ the standard Wilson plaquette action. The lattice spacing is denoted by a, the bare fermion mass by m, and μ5 is the value of the chiral chemical potential. We would like to emphasize that the chiral chemical potential, introduced in eq (2.2), corresponds to the taste-singlet operator γ5γ4 ⊗ 1 in the continuum limit. [29], are introduced to the action as a modification of the temporal links by corresponding exponential factors in order to eliminate chemical-potential dependent quadratic divergences. For staggered fermions this modification can be performed as well for the baryonic chemical potential.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
