Phase structure of thermal lattice QCD with N_f=2 twisted mass Wilson fermions
arXiv:0905.3112 · doi:10.1103/PhysRevD.80.094502
Abstract
We present numerical results for the phase diagram of lattice QCD at finite temperature in the formulation with twisted mass Wilson fermions and a tree-level Symanzik-improved gauge action. Our simulations are performed on lattices with temporal extent N_τ=8, and lattice coupling βranging from strong coupling to the scaling domain. Covering a wide range in the space spanned by the lattice coupling βand the hopping and twisted mass parameters κand μ, respectively, we obtain a comprehensive picture of the rich phase structure of the lattice theory. In particular, we verify the existence of an Aoki phase in the strong coupling region and the realisation of the Sharpe-Singleton scenario at intermediate couplings. In the weak coupling region we identify the phase boundary for the physical finite temperature phase transition/crossover. Its shape in the three-dimensional parameter space is consistent with Creutz's conjecture of a cone-shaped thermal transition surface.
24 pages, 16 figures
References in corpus (40)
- The QCD transition temperature: results with physical masses in the continuum limit
- Chirally improving Wilson fermions - I. O(a) improvement
- The transition temperature in QCD
- Speeding up the Hybrid-Monte-Carlo algorithm for dynamical fermions
- Spontaneous Flavor and Parity Breaking with Wilson Fermions
- Dynamical Twisted Mass Fermions with Light Quarks: Simulation and Analysis Details
- HMC algorithm with multiple time scale integration and mass preconditioning
- Dynamical Twisted Mass Fermions with Light Quarks
- Phase structure and critical temperature of two-flavor QCD with a renormalization group improved gauge action and clover improved Wilson quark action
- Twisted mass lattice QCD
- Chirally improving Wilson fermions
- tmLQCD: a program suite to simulate Wilson Twisted mass Lattice QCD
- Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks
- Twisted mass chiral perturbation theory at next-to-leading order
- Scaling test for Wilson twisted mass QCD
- On the phase structure of twisted mass lattice QCD
- The phase structure of lattice QCD with two flavours of Wilson quarks and renormalization group improved gluons
- Lattice QCD at finite temperature and density
- Twisted mass quarks and the phase structure of lattice QCD
- Finite-Temperature Phase Structure of Lattice QCD with Wilson Quark Action
- Probing the finite temperature phase transition with Nf=2 nonperturbatively improved Wilson fermions
- A numerical reinvestigation of the Aoki phase with N_f=2 Wilson fermions at zero temperature
- Lattice Spacing Dependence of the First Order Phase Transition for Dynamical Twisted Mass Fermions
- Evidence for O(2) universality at the finite temperature transition for lattice QCD with 2 flavours of massless staggered quarks
- Exploring the phase structure of lattice QCD with twisted mass quarks
- QCD thermodynamics with Wilson quarks at large kappa
- Lattice QCD with two light Wilson quarks and maximally twisted mass
- Finite Temperature QCD with Two Flavors of Non-perturbatively Improved Wilson Fermions
- Numerical simulations with two flavours of twisted-mass Wilson quarks and DBW2 gauge action
- Phase Structure of Lattice QCD with Wilson fermion at Finite Temperature
- Absence of Parity-Flavor Breaking Phase in QCD with two Flavors of Wilson fermions for beta greater than or equal to 5.0
- Applications of Chiral Perturbation theory to lattice QCD
- The Aoki phase for N_f=2 Wilson fermions revisited
- Effective potentials, thermodynamics, and twisted mass quarks
- Cutoff effects of Wilson fermions on the QCD equation of state to O(g^2)
- Full QCD Algorithms towards the Chiral Limit
- Dynamical twisted mass fermions
- Twisted mass QCD at finite temperature
- Twisted mass QCD thermodynamics: first results on apeNEXT
- On the phase diagram of the Higgs SU(2) model
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- The QCD equation of state from the lattice
- On the order of the QCD chiral phase transition for different numbers of quark flavours
- The thermal QCD transition with two flavours of twisted mass fermions
- QCD thermodynamics with dynamical overlap fermions
- Landau gauge gluon and ghost propagators from lattice QCD with Nf=2 twisted mass fermions at finite temperature
- Lattice QCD based on OpenCL
- Deconfinement critical point of lattice QCD with Wilson fermions
- Cutoff effects of Wilson fermions on the QCD equation of state to O(g^2)
- Kondo effect with Wilson fermions
- Towards the N_f=2 deconfinement transition temperature with O(a) improved Wilson fermions: An update
- Towards the N_f=2 deconfinement transition temperature with O(a) improved Wilson fermions
- QCD propagators and vertices from lattice QCD (in memory of Michael Müller-Preußker)
- Thermal transition temperature from twisted mass QCD
- LatticeQCD using OpenCL
- Exploration of the phase structure of lattice gauge theory with many Wilson fermions at strong coupling
- CL2QCD - Lattice QCD based on OpenCL