Evolution of Fermionic Systems as an Expectation over Poisson Processes
نویسنده
چکیده
In a recent paper we provided an exact probabilistic expression for the real time or the imaginary time evolution of a Fermi system, in particular a Hubbard model, in terms of an associated stochastic dynamics of a collection of Poisson processes. Here, we generalize the result to the case of a Hubbard model with siteand spin-dependent hopping coefficients and site-dependent interactions. This situation is of interest if disorder is present. Let us consider the Hubbard Hamiltonian
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تاریخ انتشار 1999