Constrained quantisation, gauge fixing and the Gribov ambiguity
نویسندگان
چکیده
منابع مشابه
The Gauge-Fixing Fermion in BRST Quantisation
Conditions which must be satisfied by the gauge-fixing fermion χ used in the BRST quantisation of constrained systems are established. These ensure that the extension of the Hamiltonian by the gaugefixing term [Ω, χ] (where Ω is the BRST charge) gives the correct path integral. In canonical BRST quantisation (particularly the path-integral approach developed by Batalin, Fradkin, Fradkina and Vi...
متن کاملThe Gauge-Fixing Fermion in BRST Quantisation
Conditions which must be satisfied by the gauge-fixing fermion χ used in the BRST quantisation of constrained systems are established. These ensure that the extension of the Hamiltonian by the gaugefixing term [Ω, χ] (where Ω is the BRST charge) gives the correct path integral. In canonical BRST quantisation (particularly the path-integral approach developed by Batalin, Fradkin, Fradkina and Vi...
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The formulation of gauge theories on the lattice does not require gauge fixing. However, to study Green’s functions of the fundamental fields, it is unavoidable to pick a gauge. Moreover, the correlation functions of the fundamental fields can be used to compute renormalization constants or non-perturbative coefficients used in numerical simulations. For a general overview on gauge fixing in la...
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متن کاملLattice Gauge Fixing, Gribov Copies and Brst Symmetry
We show that a modification of the BRST lattice quantization allows to circumvent an old paradox, formulated by Neuberger, related to lattice Gribov copies and nonperturbative BRST invariance. In the continuum limit the usual BRST formulation is recovered. ⋆ Address until August 31st, 1998. ⋆⋆ Permanent address.
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ژورنال
عنوان ژورنال: Communications in Mathematical Physics
سال: 1994
ISSN: 0010-3616,1432-0916
DOI: 10.1007/bf02173423