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On the generalized eigenvalue method for energies and matrix elements in lattice field theory
We discuss the generalized eigenvalue problem for computing energies and matrix elements in lattice gauge theory, including effective theories such as HQET. It is analyzed how the extracted effective
Constraints on the infrared behavior of the gluon propagator in Yang-Mills theories.
A controlled extrapolation of lattice data to infinite volume is performed, showing that the infrared limit of the Landau-gauge gluon propagator in SU(2) gauge theory is finite and nonzero in three and in four space-time dimensions.
Modeling the Gluon Propagator in Landau Gauge: Lattice Estimates of Pole Masses and Dimension-Two Condensates
We present an analytic description of numerical results for the Landau-gauge SU(2) gluon propagator D(p(2)), obtained from lattice simulations (in the scaling region) for the largest lattice sizes to
Three-point vertices in Landau-gauge Yang-Mills theory
I. IN T R O D U C T IO N Verticesdescribethebasicinteractionsbetween theelem entarydegreesoffreedom ofQCD and arethusofcentralim portancefortheunderstandingofnon-trivialphenom ena in the
Landau-gauge propagators in Yang-Mills theories at 'beta'=0: massive solution versus conformal scaling
We study Landau-gauge gluon and ghost propagators in Yang-Mills theories at lattice parameter {beta}=0, considering relatively large lattice volumes for the case of the SU(2) gauge group in three and
Numerical test of the Gribov-Zwanziger scenario in Landau gauge
We review the status of lattice simulations of gluon and ghost propagators in Landau gauge, testing predictions of the Gribov-Zwanziger confinement scenario.
Exploratory study of three-point Green's functions in Landau-gauge Yang-Mills theory
Green’s functions are a central element in the attempt to understand non-perturbative phenomena in Yang-Mills theory. Besides the propagators, 3-point Green’s functions play a significant role, since
What's up with IR gluon and ghost propagators in Landau gauge? A puzzling answer from huge lattices
Several analytic approaches predict for SU(N_c) Yang-Mills theories in Landau gauge an enhanced ghost propagator G(p^2) and a suppressed gluon propagator D(p^2) at small momenta. This prediction
Infrared properties of propagators in Landau-gauge pure Yang-Mills theory at finite temperature
The finite-temperature behavior of gluon and Faddeev-Popov-ghost propagators is investigated for pure $SU(2)$ Yang-Mills theory in Landau gauge. We present nonperturbative results, obtained using