Finite Temperature Phase Transition in Su(2) Lattice Gauge Theory with Extended Action
نویسندگان
چکیده
We study the three dimensional fundamental-adjoint SU(2) lattice gauge theory at finite temperature by Monte Carlo simulations. We find that the finite temperature deconfinement phase transition line joins the first order bulk phase transition line at its endpoint. Moreover, across the bulk transition line, the Polyakov loop undergoes a discontinuous jump implying the existence of both confining and deconfining phases on its two sides. Implications for universality and the nature of the confining-deconfining transition are discussed. On leave from Dept. of Physics, SUNY Fredonia, Fredonia N.Y. 14063, U.S.A. On leave from S. N. Bose National Centre for Basic Sciences, DB-17, Salt Lake, Calcutta-700 064, India
منابع مشابه
ساختار فاز میدانهای پیمانهای شبکهای دو بعدی U(N) با کنش مختلط
We study the phase structure of two dimensional pure lattice gauge theory with a Chern term. The symmetry groups are non-Abelian, finite and disconnected sub-groups of SU(3). Since the action is imaginary it introduces a rich phase structure compared to the originally trivial two dimensional pure gauge theory. The Z3 group is the center of these groups and the result shows that if we use one ...
متن کاملConfinement at Weak Coupling
The free energy of U(N) and SU(N) gauge theory was recently found to be of order N to all orders of a perturbative expansion about a center-symmetric orbit of vanishing curvature. Here I consider extended models for which this expansion is perturbatively stable. The extreme case of an SU(2) gauge theory whose configuration space is restricted to center-symmetric orbits has recently been investi...
متن کاملNew phases of finite temperature gauge theory from an extended action
We study the behavior of the order parameter, the phase diagram, and the thermodynamics of exotic phases of finite temperature gauge theory. Lattice simulations were performed in SU(3) and SU(4) with an adjoint Polyakov loop term added to the standard Wilson action. In SU(3), the pattern of Z(3) symmetry breaking in the new phase is distinct from the pattern observed in the deconfined phase. In...
متن کاملThe Deconfinement Transition in SO(3) Gauge Theory
The SO(3) lattice gauge theory with a Villain form of action was investigated by Monte Carlo techniques on asymmetric lattices with Nτ = 2 and 4, where Nτ is the number of sites in the temporal extent. Unlike the results for higher Nτ , only one transition of second order was found for Nτ = 2 . An extended action with an irrelevant term to suppress Z2 monopoles enabled us to get a better view o...
متن کاملDisappearance of the Abrikosov vortex above the deconfining phase transition in SU(2) lattice gauge theory.
We calculate the solenoidal magnetic monopole current and electric flux distributions at finite temperature in the presence of a static quark-antiquark pair. The simulation was performed using SU(2) lattice gauge theory in the maximal Abelian gauge. We find that the monopole current and electric flux distributions are quite different below and above the finite temperature deconfining phase tran...
متن کامل