Abstract:We devise and benchmark a numerically exact quantum Monte Carlo (QMC) method for interacting electrons on a lattice, that we dub the alternating-basis QMC (ABQMC). The method is uniquely suited to evaluate charge and spin density and the corresponding correlation functions, in both direct and reciprocal space, imaginary or real time. The formalism applies in and out of thermal equillibrium, described by either the canonical or grand-canonical ensemble. The method relies on Suzuki-Trotter decomposition (STD) an… Show more
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