Zobrazeno 1 - 10
of 285
pro vyhledávání: '"Tok T"'
Publikováno v:
Phys.Rev.D75:034501,2007
We argue that screening of higher-representation color charges by gluons implies a domain structure in the vacuum state of non-abelian gauge theories, with the color magnetic flux in each domain quantized in units corresponding to the gauge group cen
Externí odkaz:
http://arxiv.org/abs/hep-lat/0609050
Autor:
Gattnar, Jochen, Gattringer, Christof, Langfeld, Kurt, Reinhardt, Hugo, Schafer, Andreas, Solbrig, Stefan, Tok, T.
Publikováno v:
Nucl.Phys. B716 (2005) 105-127
We study the interplay between Dirac eigenmodes and center vortices in SU(2) lattice gauge theory. In particular we focus on vortex-removed configurations and compare them to an ensemble of configurations with random changes of the link variables. We
Externí odkaz:
http://arxiv.org/abs/hep-lat/0412032
The free energy of thick center vortices is calculated in continuum Yang-Mills theory in one-loop approximation using the proper time regularization. The vortices are represented by Abelian gauge field configurations on the torus which satisfy twiste
Externí odkaz:
http://arxiv.org/abs/hep-th/0412236
Autor:
Reinhardt, H., Tok, T.
Publikováno v:
Phys.Rev. D68 (2003) 065004
The spectrum of the Dirac Hamiltonian in the background of crossing vortices is studied. To exploit the index theorem, and in analogy to the lattice the space-time manifold is chosen to be the four-torus $\T^4$. For sake of simplicity we consider two
Externí odkaz:
http://arxiv.org/abs/hep-th/0302100
Publikováno v:
Phys.Rev. D66 (2002) 085004
The zero modes of the Dirac operator in the background of center vortex gauge field configurations in $\R^2$ and $\R^4$ are examined. If the net flux in D=2 is larger than 1 we obtain normalizable zero modes which are mainly localized at the vortices
Externí odkaz:
http://arxiv.org/abs/hep-th/0203012
Autor:
Reinhardt, H., Tok, T.
Publikováno v:
Phys.Lett.B500:173-182,2001
A prescription for center gauge fixing for pure Yang-Mills theory in the continuum with general gauge groups is presented. The emergence of various types of singularities (magnetic monopoles and center vortices) appearing in the course of the gauge f
Externí odkaz:
http://arxiv.org/abs/hep-th/0011068
Autor:
Reinhardt, H., Tok, T.
Abelian and center gauges are considered in continuum Yang-Mills theory in order to detect the magnetic monopole and center vortex content of gauge field configurations. Specifically we examine the Laplacian Abelian and center gauges, which are free
Externí odkaz:
http://arxiv.org/abs/hep-th/0009205
Publikováno v:
Nucl.Phys. B596 (2001) 387-414
We apply the ADHM instanton construction to SU(2) gauge theory on T^n x R^(4-n)for n=1,2,3,4. To do this we regard instantons on T^n x R^(4-n) as periodic (modulo gauge transformations) instantons on R^4. Since the R^4 topological charge of such inst
Externí odkaz:
http://arxiv.org/abs/hep-th/0005221
Publikováno v:
Nucl.Phys. B584 (2000) 589-614
We calculate the Faddeev-Popov operator corresponding to the maximally Abelian gauge for gauge group SU(N). Specializing to SU(2) we look for explicit zero modes of this operator. Within an illuminating toy model (Yang-Mills mechanics) the problem ca
Externí odkaz:
http://arxiv.org/abs/hep-th/0001175
Publikováno v:
Phys.Lett. B456 (1999) 155-161
We investigate the Abelian projection with respect to the Polyakov loop operator for SU(N) gauge theories on the four torus. The gauge fixed $A_0$ is time-independent and diagonal. We construct fundamental domains for $A_0$. In sectors with non-vanis
Externí odkaz:
http://arxiv.org/abs/hep-th/9811248