Equivariant gauge fixing of SU(2) lattice gauge theory
نویسندگان
چکیده
منابع مشابه
Equivariant 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 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 کاملLattice Chiral Gauge Theories through Gauge Fixing
After an introduction in which we review the fundamental difficulty in constructing lattice chiral gauge theories, we discuss the analytic and numerical evidence that abelian lattice chiral gauge theories can be non-perturbatively constructed through the gauge-fixing approach. While a complete non-abelian extension is still under construction, we also show how fermion-number violating processes...
متن کاملRemarks on Lattice Gauge Fixing
In the lattice gauge theories where the links belong to a compact group, the gauge fixing is necessary only in the case of the measure of a gauge dependent operator. An expression similar to (1) but without having gauge fixed the links, defines the expectation value of a gauge independent operator. Moreover, in a lattice simulation there is no need to compute the Faddeev-Popov determinant becau...
متن کاملAbelian and Nonabelian Lattice Chiral Gauge Theories through Gauge Fixing
After an introduction in which we review the fundamental difficulty in constructing lattice chiral gauge theories, we summarize the analytic and numerical evidence that abelian lattice chiral gauge theories can be nonperturbatively constructed through the gauge-fixing approach. In addition, we indicate how we believe that the method may be extended to nonabelian chiral gauge theories.
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1998
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.59.014508