Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Strouthos, C. G."'
Autor:
Strouthos, C. G.
Publikováno v:
Nucl.Phys. A749 (2005) 182-185
We present results from numerical studies of the NJL model with two massless quarks at nonzero temperature. We show that the model undergoes a second order chiral phase transition which belongs to the 3d O(4) spin model universality class.
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Externí odkaz:
http://arxiv.org/abs/hep-lat/0410003
Publikováno v:
Nucl.Phys.Proc.Suppl. 140 (2005) 701-703
We present preliminary numerical results for the three dimensional non-compact QED with a weak four-fermion term in the lattice action. Approaches based on Schwinger-Dyson studies, arguments based on thermodynamic inequalities and numerical simulatio
Externí odkaz:
http://arxiv.org/abs/hep-lat/0409038
Autor:
Hands, S. J., Strouthos, C. G.
We present simulation results of the (2+1)d four-fermion model with a baryon chemical potential. We examine temporal correlation functions of the vector meson, and find evidence of phonon-like behavior characterised by a linear dispersion relation in
Externí odkaz:
http://arxiv.org/abs/hep-lat/0408007
Publikováno v:
Phys.Rev. B70 (2004) 104501
We present numerical results for non-compact three-dimensional QED for numbers of flavors N_f=1 and N_f=4.In particular, we address the issue of whether chiral symmetry is spontaneously broken in the continuum limit, and obtain a positive answer for
Externí odkaz:
http://arxiv.org/abs/hep-lat/0404013
Publikováno v:
Nucl.Phys.Proc.Suppl. 119 (2003) 974-976
Non-compact QED(3) with four-component fermion flavor content larger than or equal to two is studied numerically near the chiral limit to understand its chiral symmetry breaking features. We monitor discretization and finite size effects on the chira
Externí odkaz:
http://arxiv.org/abs/hep-lat/0209133
Publikováno v:
Nucl.Phys. B645 (2002) 321-336
Non-compact three-dimensional QED is studied by computer simulations to understand its chiral symmetry breaking features for N_f>=2, on lattice volumes up to 50^3 and bare masses as low as ma=0.0000625. We compute the chiral condensate, scalar and ps
Externí odkaz:
http://arxiv.org/abs/hep-lat/0208030
Publikováno v:
Phys.Rev. D66 (2002) 094511
We investigate spectral functions extracted using the Maximum Entropy Method from correlators measured in lattice simulations of the (2+1)-dimensional four-fermion model. This model is particularly interesting because it has both a chirally broken ph
Externí odkaz:
http://arxiv.org/abs/hep-lat/0208027
Publikováno v:
Phys.Rev. D65 (2002) 114507
We present results from a numerical study of bound state wavefunctions in the (2+1)-dimensional Gross-Neveu model with staggered lattice fermions at both zero and nonzero temperature. Mesonic channels with varying quantum numbers are identified and a
Externí odkaz:
http://arxiv.org/abs/hep-lat/0201014
Publikováno v:
Phys.Lett. B515 (2001) 407-413
We present results from numerical simulations of the (2+1)-dimensional Gross-Neveu model with a U(1) chiral symmetry and N_f=4 fermion species at non-zero temperature. We provide evidence that there are two different chirally symmetric phases, one cr
Externí odkaz:
http://arxiv.org/abs/hep-lat/0107004
Autor:
Kogut, J. B., Strouthos, C. G.
Publikováno v:
Phys.Rev. D63 (2001) 054502
The three-dimensional four-fermion model with a Z_2 chiral symmetry and N=4 fermion species in the system is investigated numerically at non-zero temparature and chemical potential. The phase diagram in the (chemical potential, temperature) plane is
Externí odkaz:
http://arxiv.org/abs/hep-lat/9904008