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Hybrid Monte Carlo study of monolayer graphene with partially screened Coulomb interactions at finite spin density

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Körner, Michael ; Smith, Dominik ; Buividovich, Pavel ; Ulybyshev, Maksim ; von Smekal, Lorenz
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Date of publication of this fulltext: 20 Mar 2019 13:10


We report on Hybrid Monte Carlo simulations at finite spin density of the p-band electrons in monolayer graphene with realistic interelectron interactions. Unlike simulations at finite charge-carrier density, these are not affected by a fermion-sign problem. Our results are in qualitative agreement with an interaction-induced warping of the Fermi contours and a reduction of the bandwidth as ...


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