Two-colour QCD at finite fundamental quark-number density and related theories

Abstract

We are simulating SU(2) Yang-Mills theory with four flavours of dynamical quarks in the fundamental representation of SU(2) `colour' at finite chemical potential, mu for quark number, as a model for QCD at finite baryon number density. In particular we observe that for mu large enough this theory undergoes a phase transition to a state with a diquark condensate which breaks quark-number symmetry. In this phase we examine the spectrum of light scalar and pseudoscalar bosons and see evidence for the Goldstone boson associated with this spontaneous symmetry breaking. This theory is closely related to QCD at finite chemical potential for isospin, a theory which we are now studying for SU(3) colour.

Lattice 2000 (Finite Density), 4 pages LaTeX, 4 postscript figures, espcrc2.7/8, extra reference

References in corpus (1)

• Symmetries and spectrum of SU(2) Lattice Gauge Theory at finite chemical potential

Cited by in corpus (18)

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• QCD-like Theories at Finite Baryon and Isospin Density
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• QCD at small non-zero quark chemical potentials
• Thermodynamics of two-colour QCD and the Nambu Jona-Lasinio model
• Factorization of Correlation Functions and the Replica Limit of the Toda Lattice Equation
• The QCD Phase Diagram at Nonzero Temperature, Baryon and Isospin Chemical Potentials in Random Matrix Theory
• Diquark Condensate in QCD with Two Colors at Next-to-Leading Order
• Thermodynamics of chiral symmetry at low densities
• The Phase Diagram of Four Flavor SU(2) Lattice Gauge Theory at Nonzero Chemical Potential and Temperature
• Diquark Condensation at Nonzero Chemical Potential and Temperature
• The Superfluid and Conformal Phase Transitions of Two-Color QCD
• Random matrix study of the phase structure of QCD with two colors
• Diquark and Pion Condensation in Random Matrix Models for two-color QCD
• The pseudo-Goldstone spectrum of 2-colour QCD at finite density
• Composite Reweighting the Glasgow Method for Finite Density QCD
• Diquark condensation at strong coupling
• Composite reweighting SU(2) QCD at Finite Temperature