Abstract
We show that the symmetry of stochastically quantized gauge theories is governed by a single differential operator. The latter combines supersymmetry and ordinary gauge transformations. Quantum field theory can be defined on the basis of a parabolic differential operator \( \frac{\partial }{{\partial t}} - \left( {\frac{\partial }{{\partial x^i }}} \right)^2 , \) with a Hamiltonian of the type \( H = \frac{1}{2}\left[ {Q,\overline Q } \right], \) where Q has has deep relationship with the conserved charge of a topoplogical gauge theory. We display the examples of Yang-Mills theory. We also show the relevant equations for gravity, with interesting remarks for the 2-dimensional case. For the stochastic quantization of a first order action, we present another method which defines quantum field theory from a second order supersymmetric action while maintaining gauge invariance. As an application, the theory defined by the “two dimensional Chern Simons action” ∫ M2 Tr ϕ F is related to a four dimensional theory defined by a gauge fixed action of the second Chern class ∫ M4 TrFF.
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Baulieu, L. (1990). On Gauge Invariances in Stochastic Quantization. In: Damgaard, P.H., Hüffel, H., Rosenblum, A. (eds) Probabilistic Methods in Quantum Field Theory and Quantum Gravity. NATO ASI Series, vol 224. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3784-7_21
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DOI: https://doi.org/10.1007/978-1-4615-3784-7_21
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