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Non decoupling ghosts in the light cone gauge
Ricardo Bentin
The gist of using the light cone gauge lies in the well known property of ghosts decoupling. But from the BRST point of view this is a stringency since for the construction of a ni…
A comment on causality
Ricardo Bentin
We start from the well-known form of the interval of the special relativity, stare it, and build up an attempt to implement the causality from it. Some features appear to be new, t…
Not a prescription but an identity: Mandelstam-Leibbrandt
Ricardo Bentin
After some considerations and coincidences that appear when working in the light-cone gauge, in both the Mandelstam-Leibbrandt prescription and the covariantization method, we susp…
Covariantization and canonical quantization in the light-cone gauge
Alfredo T. Suzuki, Ricardo Bentin
In the light-cone gauge choice for Abelian and non-Abelian gauge fields, the vector boson propagator carries in it an additional ``spurious'' or ``unphysical'' pole intrinsic to th…