منابع مشابه
Gribov Problem and Brst Symmetry †
After a brief historical comment on the study of BRS(or BRST) symmetry , we discuss the quantization of gauge theories with Gribov copies. A path integral with BRST symmetry can be formulated by summing the Gribov-type copies in a very specific way if the functional correspondence between τ and the gauge parameter ω defined by τ(x) = f(Aμ(x)) is “globally single valued”, where f(A ω μ(x)) = 0 s...
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We discuss local and covariant dual BRST symmetry and its consequences in two-dimensional quantum electrodynamics (QED). With the help of BRSTand dual BRST charges, we explore the BRST cohomology of physical states in the quantum Hilbert space. The algebra between conserved and nilpotent BRSTand dual BRST charges leads to the existence of a BRST-extended Casimir operator. The Hodge decompositio...
متن کاملDual Brst Symmetry for Qed
We show the existence of a co(dual)-BRST symmetry for the usual BRST invariant Lagrangian density of an Abelian gauge theory in two dimensions of space-time where a U(1) gauge field is coupled to the Noether conserved current (constructed by the Dirac fields). Under this new symmetry, it is the gauge-fixing term that remains invariant and the symmetry transformations on the Dirac fields are ana...
متن کاملDual Brst Symmetry for Qed
We show the existence of a co(dual)-BRST symmetry for the usual BRST invariant Lagrangian density of an Abelian gauge theory in two dimensions of space-time where a U(1) gauge field is coupled to the Noether conserved current (constructed by the Dirac fields). Under this new symmetry, it is the gauge-fixing term that remains invariant and the symmetry transformations on the Dirac fields are ana...
متن کاملDual Brst Symmetry for Two Dimensional Qed
We show the existence of a co(dual)-BRST symmetry for the usual BRST invariant Lagrangian density of an Abelian gauge theory in two dimensions of space-time where a U(1) gauge field is coupled to the Noether conserved current (constructed by the Dirac fields). Under this new symmetry, it is the gauge-fixing term that remains invariant and the symmetry transformations on the Dirac fields are ana...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2017
ISSN: 1029-8479
DOI: 10.1007/jhep07(2017)024