Stochastic calculus in superspace. I. Supersymmetric Hamiltonians

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, , Citation A Rogers 1992 J. Phys. A: Math. Gen. 25 447 DOI 10.1088/0305-4470/25/2/024

0305-4470/25/2/447

Abstract

Various analytic results which combine fermionic Brownian motion with stochastic integration are described, and it is shown that a wide class of stochastic differential equations in superspace have solutions. Such solutions are then used to derive a Feynman-Kac formula for a supersymmetric system in terms of the supercharge whose square is the Hamiltonian of the system. This is achieved by introducing superpaths parametrized by a commuting and an anticommuting time variable.

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10.1088/0305-4470/25/2/024