Two-colour QCD with heavy quarks at finite densities

Abstract

We extend the density-of-states approach to gauge systems (LLR method) to QCD at finite temperature and density with heavy quarks. The approach features an exponential error suppression and yields the Polyakov loop probability distribution function over a range of more than hundred orders of magnitude. SU(2) gauge theory is considered in the confinement and the high-temperature phase, and at finite densities of heavy quarks. In the latter case, a smooth rise of the density with the chemical potential is observed, and no critical phenomenon associated with deconfinement due to finite densities is found.

4 pages, 5 figures

References in corpus (8)

• The Phase Structure of the Polyakov--Quark-Meson Model
• Improved Polyakov-loop potential for effective models from functional calculations
• The density of states in gauge theories
• Towards the phase diagram of dense two-color matter
• Flux representation of an effective Polyakov loop model for QCD thermodynamics
• The QCD phase diagram according to the center group
• The effective potential of the confinement order parameter in the Hamiltonian approach
• Effective potential for SU(2) Polyakov loops and Wilson loop eigenvalues

Cited by in corpus (23)

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• The density of states approach to dense quantum systems
• Anatomy of the sign-problem in heavy-dense QCD
• Gauge turbulence, topological defect dynamics, and condensation in Higgs models
• Controlling the Sign Problem in Finite Density Quantum Field Theory
• Applying constrained simulations for low temperature lattice QCD at finite baryon chemical potential
• Density of States FFA analysis of SU(3) lattice gauge theory at a finite density of color sources
• Developing and testing the density of states FFA method in the SU(3) spin model
• Flow-based density of states for complex actions
• A density of states approach to the hexagonal Hubbard model at finite density
• Confinement in non-Abelian lattice gauge theory via persistent homology
• New DoS approaches to finite density lattice QCD
• Density of states approach for lattice gauge theory with a $\theta$-term
• Simple QED- and QCD-like Models at Finite Density
• Density of States of the lattice Schwinger model
• New canonical and grand canonical DoS techniques for finite density lattice QCD
• The density of states approach for the simulation of finite density quantum field theories
• Speed of sound peak in two-color dense QCD: confronting effective models with lattice data
• Functional Fit Approach (FFA) for Density of States method: SU(3) spin system and SU(3) lattice gauge theory with static color sources