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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...
Effective Polyakov-loop theory for pure Yang-Mills from strong coupling expansion
Effective Polyakov-loop theory pure Yang-Mills strong coupling expansion
2011/1/13
Lattice Yang-Mills theories at finite temperature can be mapped onto effective 3d spin systems,
thus facilitating their numerical investigation.
$q{\bar q}$ Potential at Finite T and Weak Coupling in ${\cal N}=4$
$q{\bar q}$ Potential Finite T Weak ${\cal N}=4$
2011/1/10
We compute the potential between a q¯q singlet for N = 4 SUSY with gauge group SU(N) at finite temperature T, large distances rT ≫ 1 and weak coupling g. As a first step.
We discuss the status of different determinations of as, motivating a precise and reliable computation from lattice QCD. In order to suppress perturbative errors, the non-perturbative computation has ...
On Duffin-Kemmer-Petiau particles with a mixed minimal-nonminimal vector coupling and the nondegenerate bound states for the one-dimensional inversely linear background
Duffin-Kemmer-Petiau theory nonminimal coupling Klein’s paradox hydrogen atom
2010/10/27
The problem of spin-0 and spin-1 bosons in the background of a general mixing of minimal and
nonminimal vector inversely linear potentials is explored in a unified way in the context of the Duffin-Ke...
Q1D-Polarons in Rigid Boundary Cylindrical Wires: “Mixed-Coupling Approximation”
Cylindrical Wires Q1D-Polarons electron-phonon coupling strengths
2010/4/19
We consider the interaction of a confined electron with bulk polar-optical phonons in a cylindrical quantum well wire with infinite boundary potential. Expressions for the polaron self energy and mass...