Faddeev-Popov ghosts
نویسندگان
چکیده
منابع مشابه
Faddeev Popov Ghosts
These notes are to accompany my talk on gauge xing in quantum eld theories (QFTs), and the mathematical tricks associated with this procedure. In Section 1 I will look at gauge xing for Abelian elds, considering the speci c case of the Maxwell theory describing photons. In Section 2 I consider a non-Abelian generalization of the Maxwell theory called Yang Mills theory, which describes vector bo...
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We consider how Lorentz-violating interactions in the Faddeev-Popov ghost sector will affect scalar QED. The behavior depends sensitively on whether the gauge symmetry is spontaneously broken. If the symmetry is not broken, Lorentz violations in the ghost sector are unphysical, but if there is spontaneous breaking, radiative corrections will induce Lorentz-violating and gauge-dependent terms in...
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We investigate the Gribov-Zwanziger scenario in the Coulomb gauge using a SU(3) quenched lattice gauge simulation. The dressing function of the ghost propagator diverges in the infrared limit. This result is expected from the fact that the Faddeev-Popov eigenvalue density gets concentrated near the vanishing eigenvalue compared to that in the abelian gauge theory. The turnover of the transversa...
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Recently Callan, Giddings, Harvey and the author derived a set of one-loop semiclassical equations describing black hole formation/evaporation in two-dimensional dilaton gravity conformally coupled to N scalar fields. These equations were subsequently used to show that an incoming matter wave develops a black hole type singularity at a critical value φ cr of the dilaton field. In this paper a m...
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The confinement of colored objects in QCD is, even after more than thirty years, still a challenging problem. The progress which has been made in its understanding during the last years has been mainly along two directions, which are at first sight quite different. One is based on topological field configurations, like vortices [1]. The other investigates the properties of Green’s functions [2]...
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ژورنال
عنوان ژورنال: Scholarpedia
سال: 2009
ISSN: 1941-6016
DOI: 10.4249/scholarpedia.7389