Finite temperature phase transition in a cross-dimensional triangular lattice

Folding transition of the triangular lattice in a discretethree { dimensional

A vertex model introduced onto the face centered cubic lattice has been studied in the hexagon approximation of the cluster variation method. The model describes the behaviour of a polymerized membrane in a discrete three{dimensional space. We have introduced a curvature energy and a symmetry breaking eld and studied the phase diagram of the resulting model. By varying the curvature energy para...

Berezinskii-Kosterlitz Thouless Phase Transition in Superconducting Two Dimensional Triangular Lattice

Berezinskii-Kosterlitz Thouless (BKT) transition is a phase transition on spin vectors at 2 dimensional lattice from bound vortex anti vortex at low temperatures to unpaired vortices and anti-vortices above critical temperature. Those two phases di er in the way their long distance correlations decay, as a power law (at low temperatures) or exponentially above critical temperature. In disordere...

Effect of Annealed Bond Impurities on the Phase Transition Temperature in a Two-dimensional Ising Lattice

Finite temperature phase transition in the 4 d compact U ( 1 ) lattice gauge theory

We study the phase diagram of the 4d compact U(1) gauge theory as a function of the number of Euclidean time slices. We use the helicity modulus [1] as order parameter to probe the phase transitions. The order of the transition along the phase boundaries is studied and the possibility of a continuum limit is discussed. We present new, strong evidence that the T = 0 bulk phase transition is firs...

Finite Temperature Phase Transition in Su(2) Lattice Gauge Theory with Extended Action

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 confinin...