منابع مشابه
Noncovariant Gauges in Simple Supergravity
A gauge-averaging functional of the axial type is studied for simple supergravity at one loop about flat Euclidean four-space bounded by a three-sphere, or two concentric three-spheres. This is a generalization of recent work on the axial gauge in quantum supergravity on manifolds with boundary. Ghost modes obey nonlocal boundary conditions of the spectral type, in that half of them obey Dirich...
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Ghost condensates of dimension two are analysed in a class of nonlinear gauges in pure Yang-Mills theories. These condensates are related to the breaking of the SL(2, R) symmetry, present in these gauges.
متن کاملGhost condensates in Yang - Mills theories in nonlinear gauges
The existence of ghost condensates of dimension two in a class of nonlinear gauges is discussed in pure Yang-Mills theories. These condensates are related to the dynamical symmetry breaking of the ghost number, giving rise to a vacuum configuration which leaves invariant the maximal Abelian subgroup.
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We present a formulation of non-Abelian gauge theories in general axial gauges using a Wilsonian (or ’Exact’) Renormalisation Group. No ’spurious’ propagator divergencies are encountered in contrast to standard perturbation theory. Modified Ward identities, compatible with the flow equation, ensure gauge invariance of physical Green functions. The axial gauge nA = 0 is shown to be a fixed point...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2013
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x13500334