Evolution of fermionic systems as an expectation over Poisson processes
Matteo Beccaria, Carlo Presilla, Gian Fabrizio De Angelis, Giovanni Jona Lasinio
Abstract
We derive an exact probabilistic representation for the evolution of a Hubbard model with site- and spin-dependent hopping coefficients and site-dependent interactions in terms of an associated stochastic dynamics of a collection of Poisson processes.
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