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5 papers · 1 filter
Four - Fermi Theories in Fewer Than Four Dimensions
Simon Hands, Aleksandar Kocic, John B. Kogut
Four-fermi models in dimensionality exhibit an ultra-violet stable renormalization group fixed point at a strong value of the coupling constant where chiral symmetry is spo…
The Universlity Class of Monopole Condensation in Non-Compact, Quenched Lattice QED
Aleksandar Kocic, John Kogut, Simon Hands
Finite size scaling studies of monopole condensation in noncompact quenched lattice indicate an authentic second order phase transition lying in the universality class of fou…
The Four-Fermi Model in Three Dimensions at Non-Zero Density and Temperature
Simon Hands, Aleksandar Kocic, John Kogut
The Four Fermi model with discrete chiral symmetry is studied in three dimensions at non-zero chemical potential and temperature using the Hybrid Monte Carlo algorithm. The number…
Grand Canonical Partition Function of a 2-dimensional Hubbard Model
I. M. Barbour, E. G. Klepfish
We present a new technique for a numerical analysis of the phase structure of the 2D Hubbard model as a function of the hole chemical potential. The grand canonical partition funct…
Critical mass in nonzero temperature QCD with staggered fermions
I. M. Barbour, A. J. Bell, E. G. Klepfish
The behaviour of the chiral condensate in QCD is investigated by means of a study of the distribution of the zeros of the partition function in the complex quark mass plane. Simula…