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Quark mass dependence of the vacuum electric conductivity induced by the magnetic field in SU(2) lattice gluodynamics
the vacuum electric conductivity the magnetic field
2010/12/27
We study the electric conductivity of the vacuum of quenched SU(2) lattice gauge theory induced by the magnetic field B as a function of the bare quark mass m. The conductivity grows as the quark mas...
Time-dependent current density functional theory on a lattice
Time-dependent current density functional theory lattice
2010/11/22
A rigorous formulation of time-dependent current density functional theory (TDCDFT) on a
lattice is presented. The density-to-potential mapping and the V-representability problems are
reduced to a s...
Can Lorentz-breaking fermionic condensates form in large N strongly-coupled Lattice Gauge Theories?
Lorentz-breaking fermionic condensates strongly-coupled Lattice Gauge Theories
2011/1/13
The possibility of Lorentz symmetry breaking (LSB) has attracted considerable attention in recent years for a variety of reasons, including the attractive prospect of the graviton as a Goldstone boson...
Non-perturbative running of the coupling from four flavour lattice QCD with staggered quarks
Non-perturbative running coupling from four flavour lattice QCD staggered quarks
2011/1/14
Using the Schrödinger functional (SF) with a single staggered fermion field we calculate the SF
coupling in four-flavour QCD for a wide range of energies and lattice sizes up to L/a = 16.
Preli...
Electronic and Lattice Dynamical Properties of the Iron-Based Superconductors LiFeAs and NaFeAs
Electronic collinear antiferromagnetic Superconductors
2009/9/4
The electronic structure and lattice vibrational frequencies of the newly discovered superconductors, LiFeAs and NaFeAs, are calculated within density functional theory. We show that, in the vicinity ...