No Cover Image

Journal article 581 views

Towards the phase diagram of dense two-color matter / Seamus Cotter; Pietro Giudice; Simon Hands; Jon-Ivar Skullerud

Physical Review D, Volume: 87, Issue: 3, Start page: 034507

Swansea University Author: Simon, Hands

Full text not available from this repository: check for access using links below.

Abstract

We study two-color QCD with two flavors of Wilson fermion as a function of quark chemical potential mu and temperature T. We find evidence of a superfluid phase at intermediate mu and low T where the quark number density and diquark condensate are both very well described by a Fermi sphere of nearly...

Full description

Published in: Physical Review D
ISSN: 1550-7998 1550-2368
Published: 2013
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa13404
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: We study two-color QCD with two flavors of Wilson fermion as a function of quark chemical potential mu and temperature T. We find evidence of a superfluid phase at intermediate mu and low T where the quark number density and diquark condensate are both very well described by a Fermi sphere of nearly-free quarks disrupted by a BCS condensate. Our results suggest that the quark contribution to the energy density is negative (and balanced by a positive gauge contribution), although this result is highly sensitive to details of the energy renormalisation. We also find evidence that the chiral condensate in this region vanishes in the massless limit. This region gives way to a region of deconfined quark matter at higher T and mu, with the deconfinement temperature, determined from the renormalised Polyakov loop, decreasing only very slowly with increasing chemical potential. The quark number susceptibility chi_q does not exhibit any qualitative change at the deconfinement transition. We argue that this is because chi_q is not an appropriate measure of deconfinement for 2-color QCD at high density
Item Description: arXiv:1210.4496
College: College of Science
Issue: 3
Start Page: 034507