Branes in the 5D Abelian Higgs Model
We find 3-brane Higgs and Coulomb phases in the 5D Abelian Higgs Model and determine the transition surfaces that separate them from the usual bulk phases.
hep-lat↗
arXiv subjects
C. P. Korthals-Altes
Publications and source records attributed to C. P. Korthals-Altes.
Phase Structure of the 5D Abelian Higgs Model with Anisotropic Couplings
We establish the phase diagram of the five-dimensional anisotropic Abelian Higgs model by mean field techniques and Monte Carlo simulations. The anisotropy is encoded in the gauge couplings as well as in the Higgs couplings. In addition to the usual bulk phases (confining, Coulomb and Higgs) we find four-dimensional ``layered'' phases (3-branes) at weak gauge coupling, where the layers may be in either the Coulomb or the Higgs phase, while the transverse directions are confining.
hep-lat↗
Gauge Theories with a Layered Phase
We study abelian gauge theories with anisotropic couplings in $4+D$ dimensions. A layered phase is present, in the absence as well as in the presence of fermions. A line of second order transitions separates the layered from the Coulomb phase, if $D\leq 3$.
hep-th↗
Z(N) Bubbles and their Descendants in Hot QCD: Alive and Bubbling
The spontaneous breaking of Z(N) symmetry in hot QCD and the appearance of domain walls is reviewed.
hep-th↗
Chiral Defect Fermions and the Layered Phase
Chiral defect fermions on the lattice in 4+1 dimensions are analyzed using mean field theory. The fermion propagator has a localized chiral mode in weak coupling but loses it when the coupling in the unphysical fifth direction becomes too large. A layered phase à la Fu-Nielsen appears where the theory is vector-like in every layer.
hep-lat↗
Z(N) interface tension in a hot SU(N) gauge theory
The interface tension between Z(N) vacua in a hot SU(N) gauge theory (without dynamical fermions) is computed at next to leading order in weak coupling. The Z(N) interface tension is related to the instanton of an effective action, which includes both classical and quantum terms; a general technique for treating consistently the saddle points of such effective actions is developed. Loop integrals which arise in the calculation are evaluated by means of zeta function techniques. As a byproduct, up to two loop order we find that the stable vacuum is always equivalent to the trivial one, and so respects charge conjugation symmetry.
hep-ph↗