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Article
Open AccessBetter 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
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Article
Open AccessUnconventional 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...
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Article
Open AccessReference 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...