SU(2) lattice gauge theory at nonzero chemical potential and temperature

✍ Scribed by J.B. Kogut; D. Toublan; D.K. Sinclair

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 255 KB
• Volume: 119
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(03)01620-7

✦ Synopsis

SU(2) lattice gauge theory with four flavors of quarks is simulated at nonzero chemical potential p and temperature T and the results are compared to the predictions of Effective Lagrangians. Simulations on 164 lattices indicate that at zero T the theory experiences a second order phase transition to a diquark condensate state which is well described by mean field theory. Nonzero T and ,LJ are studied on 123 x 6 lattices. For low T. increasing p takes the system through a line of second order phase transitions to a diquark condensed phase. Increasing 2' at high p, the system passes through a line of first order transitions from the diquark phase t,o the quark-gluon plasma phase.