On the SU(3) topological charge in lattice gauge theories
نویسندگان
چکیده
منابع مشابه
Topological defects in lattice gauge theories
We present a non-perturbative formalism for measuring defect free energies (monopole mass or vortex tension) in three-dimensional SU(2)+adjoint Higgs models. Starting from twisted, translation invariant boundary conditions, we perform a change of variables that allows us to express the defect free energies in terms of ’t Hooft loops. We propose that the defect free energies can be used to disti...
متن کاملFermionic topological charge of families of lattice gauge fields
the degree of φ : S → SU(N), where S is the 3sphere “at infinity” in R. The topological charge has a fermionic description: by the Index Theorem, Q = index(%∂ ) where %∂ A is the Dirac operator coupled to A. The situation is similar for gauge fields on compact manifolds such as S, T , . . . Consider now a family A of SU(N) gauge fields on the 4-torus T 4 parameterized by y ∈ Y (a smooth paramet...
متن کاملGauge dependence in topological gauge theories
We parametrize the gauge-fixing freedom in choosing the Lagrangian of a topological gauge theory. We compute the gauge-fixing dependence of correlators of equivariant operators when the compactified moduli space has a non-empty boundary and verify that only a subset of these has a gauge independent meaning. We analyze in detail a simple example of such anomalous topological theories, 4D topolog...
متن کاملSupersymmetric quiver gauge theories on the lattice
In this paper we detail the lattice constructions of several classes of supersymmetric quiver gauge theories in two and three Euclidean spacetime dimensions possessing exact supersymmetry at finite lattice spacing. Such constructions are obtained through the methods of topological twisting and geometric discretization of Euclidean Yang-Mills theories with eight and sixteen supercharges in two a...
متن کاملTopological interactions in gauge theories
Much of the relevant physics described by gauge theories is non-perturbative in nature; for example features like the spectrum, the confinement phenomenon and the study of topological defects and their physical properties. The research in the my group has in recent years focused on some up to now poorly understood non perturbative features of topological defects in gauge theories such as their ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 1985
ISSN: 0370-2693
DOI: 10.1016/0370-2693(85)91173-6