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Entanglement Spectra of Interacting Fermions in Quantum Monte Carlo Simulations
Published 22 Nov 2013 in cond-mat.str-el, cond-mat.stat-mech, and quant-ph | (1311.5851v2)
Abstract: In a recent article T. Grover [Phys. Rev. Lett. 111, 130402 (2013)] introduced a simple method to compute Renyi entanglement entropies in the realm of the auxiliary field quantum Monte Carlo algorithm. Here, we further develop this approach and provide a stabilization scheme to compute higher order Renyi entropies and an extension to access the entanglement spectrum. The method is tested on systems of correlated topological insulators.
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