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  1. Article

    Open Access

    Reference results for the momentum space functional renormalization group

    The functional renormalization group (FRG), an established computational method for quantum many-body phenomena, has been subject to a diversification in topical applications, analytic approximations and numer...

    Jacob Beyer, Jonas B. Profe, Lennart Klebl in The European Physical Journal B (2022)

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  2. Article

    Open Access

    Unconventional superconductivity from weak coupling

    We develop a joint formalism and numerical framework for analyzing the superconducting instability of metals from a weak coupling perspective. This encompasses the Kohn–Luttinger formulation of weak coupling r...

    Matteo Dürrnagel, Jacob Beyer, Ronny Thomale… in The European Physical Journal B (2022)

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  3. Article

    Open Access

    Better integrators for functional renormalization group calculations

    We analyze a variety of integration schemes for the momentum space functional renormalization group calculation with the goal of finding an optimized scheme. Using the square lattice

    Jacob Beyer, Florian Goth, Tobias Müller in The European Physical Journal B (2022)

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