Results 21 to 30 of about 12,698,666 (292)
The density matrix renormalization group in chemistry and molecular physics: Recent developments and new challenges. [PDF]
Journal of Chemical Physics, 2019 In the past two decades, the density matrix renormalization group (DMRG) has emerged as an innovative new method in quantum chemistry relying on a theoretical framework very different from that of traditional electronic structure approaches.
Alberto Baiardi, M. Reiher
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Bond-weighted tensor renormalization group [PDF]
Physical review B, 2020 We propose an improved tensor renormalization group (TRG) algorithm, the bond-weighted TRG (BTRG). In BTRG, we generalize the conventional TRG by introducing bond weights on the edges of the tensor network.
Daiki Adachi, T. Okubo, S. Todo
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Automatic differentiable numerical renormalization group
Physical Review Research, 2022 Machine learning techniques have recently gained prominence in physics, yielding a host of new results and insights. One key concept is that of backpropagation, which computes the exact gradient of any output of a program with respect to any input.
Jonas B. Rigo, Andrew K. Mitchell
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Renormalization group and universality [PDF]
Physical Review D, 1995 It is argued that universality is severely limited for models with multiple fixed points. As a demonstration the renormalization group equations are presented for the potential and the wave function renormalization constants in the $O(N)$ scalar field theory.
Liao, Sen-Ben, Polonyi, Janos
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Neural Monte Carlo renormalization group
Physical Review Research, 2021 The key idea behind the renormalization group (RG) transformation is that properties of physical systems with very different microscopic makeups can be characterized by a few universal parameters.
Jui-Hui Chung, Ying-Jer Kao
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Topological defect lines and renormalization group flows in two dimensions [PDF]
Journal of High Energy Physics, 2018 A bstractWe consider topological defect lines (TDLs) in two-dimensional conformal field theories. Generalizing and encompassing both global symmetries and Verlinde lines, TDLs together with their attached defect operators provide models of fusion ...
Chi-Ming Chang +4 more
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Leading all-loop quantum contribution to the effective potential in general scalar field theory
Journal of High Energy Physics, 2023 The RG equation for the effective potential in the leading log (LL) approximation is constructed which is valid for an arbitrary scalar field theory in 4 dimensions.
D. I. Kazakov +2 more
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Physical Review Letters, 2020 We develop a two stage renormalization group which connects the continuum Hamiltonian for twisted bilayer graphene at length scales shorter than the moire superlattice period to the Hamiltonian for the active narrow bands only which is valid at distances
O. Vafek, Jian Kang
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The analytic renormalization group
Nuclear Physics B, 2016 Finite temperature Euclidean two-point functions in quantum mechanics or quantum field theory are characterized by a discrete set of Fourier coefficients Gk, k∈Z, associated with the Matsubara frequencies νk=2πk/β.
Frank Ferrari
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Ward-constrained melonic renormalization group flow
Physics Letters B, 2020 In recent years, interesting investigations of the nonperturbative renormalization group equations for tensorial group field theories have been performed in the truncation method, while completely discarding the Ward identities from their analysis.
Vincent Lahoche, Dine Ousmane Samary
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