Nonperturbative gauge fixing and perturbation theory
نویسندگان
چکیده
منابع مشابه
Nonperturbative Dynamics of Noncommutative Gauge Theory
We present a nonperturbative lattice formulation of noncommutative Yang-Mills theories in arbitrary even dimension. We show that lattice regularization of a noncommutative field theory requires finite lattice volume which automatically provides both an ultraviolet and an infrared cutoff. We demonstrate explicitly Morita equivalence of commutative U(p) gauge theory with p · nf flavours of fundam...
متن کاملInterpolating gauge fixing for Chern-Simons theory
Chern-Simons theory is analyzed with a gauge-fixing which allows to discuss the Landau gauge and the light-cone gauge at the same time.
متن کاملGauge Fixing of SU ( 2 ) Lattice Gauge Theory
I construct a Lattice Gauge Theory (LGT) with discrete Z2 structure group and an equivariant BRST symmetry that for gauge invariant observables is equivalent to the standard SU(2)-LGT. The measure of this Z2-LGT is invariant under all the discrete symmetries of the lattice. The SU(2) structure group of the original LGT is first reduced to an U(1) structure group by an equivariant BRST construct...
متن کاملNote on the Gauge Fixing in Gauge Theory
In the absence of Gribov complications, the modified gauge fixing in gauge theory ∫ DAμ{exp[−SYM (Aμ)− ∫ f(Aμ)dx]/ ∫ Dg exp[− ∫ f(Aμ)dx]} for example, f(Aμ) = (1/2)(Aμ) 2, is identical to the conventional Faddeev-Popov formula ∫ DAμ{δ(D δf(Aν ) δAμ )/ ∫ Dgδ(Dμ δf(A g ν ) δA g μ )} exp[−SYM (Aμ)] if one takes into account the variation of the gauge field along the entire gauge orbit. Despite of ...
متن کاملEquivariant Gauge Fixing of SU ( 2 ) Lattice Gauge Theory
I construct a Lattice Gauge Theory (LGT) with discrete Z2 structure group and an equivariant BRST symmetry that for gauge invariant observables is equivalent to the standard SU(2)-LGT. The measure of this Z2-LGT is invariant under all the discrete symmetries of the lattice. The SU(2) structure group of the original LGT is first reduced to an U(1) structure group by an equivariant BRST construct...
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: Physical Review D
سال: 2001
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.63.034504