Results 131 to 140 of about 1,476,489 (293)
The Functional Renormalization Group Treatment of Disordered Systems, a Review [PDF]
, 2003 Kay Jörg Wiese
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Exact flow equation for the divergence functional
Physics Letters B, 2023 An exact functional renormalization group flow equation is derived for the divergence functional which is a generalization of the Kullback-Leibler divergence to quantum field theories in the Euclidean domain.
Stefan Floerchinger
doaj
Enhancement of field renormalization in scalar theories via functional renormalization group
, 2012 The flow equations of the Functional Renormalization Group are applied to the O(N)-symmetric scalar theory, for N=1 and N=4, in four Euclidean dimensions, d=4, to determine the effective potential and the renormalization function of the field in the ...
Dario Zappalà +2 more
core +1 more source
Renormalization group theory of the critical properties of the interacting bose fluid [PDF]
, 1982 Starting from a functional integral representation of the partition function we apply the renormalization group to the interacting Bose fluid. A closed form for the renormalization equation is derived and the critical exponents are calculated in 4-ε ...
Creswick, Richard J. +1 more
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Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect
Advanced Physics Research, EarlyView.This review investigates the connection between chiral anomalies and their manifestation in topological materials, using both perturbative methods based on ordinary quantum field theory and conformal field theory (CFT). It emphasizes the role of CFT in momentum space for parity‐odd correlation functions, and their reconstruction by the inclusion of a ...
Claudio Corianò +4 more
wiley +1 more source
Functional renormalization group for three-dimensional quantum magnetism [PDF]
, 2016 We formulate a pseudofermion functional renormalization group (PFFRG) scheme to address frustrated quantum magnetism in three dimensions. In a scenario where many numerical approaches fail due to sign problem or small system size, three-dimensional (3D ...
Iqbal, Yasir +4 more
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The Functional Renormalization Group in Quantum Gravity
, 2023 The gravitational asymptotic safety program envisions a high-energy completion of the gravitational interactions by an interacting renormalization group fixed point, the Reuter fixed point. The primary tool for investigating this scenario are functional renormalization group equations, foremost the Wetterich equation.
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Correlated starting points for the functional renormalization group [PDF]
Physical Review B, 2015 We present a general frame to extend functional renormalization group (fRG) based computational schemes by using an exactly solvable interacting reference problem as starting point for the RG flow. The systematic expansion around this solution accounts for a non-perturbative inclusion of correlations.
Andrey A. Katanin +7 more
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Advanced Physics Research, EarlyView.This review summarizes the recent advances of controllable syntheses of 2D materials on Au substrates, including the epitaxial growth of monolayer transition metal dichalcogenides single crystals, the construction of vertical heterostructures, and the preparation of novel 2D materials.
Wenzhi Quan +3 more
wiley +1 more source
Renormalization group for open quantum systems using environment temperature as flow parameter
SciPost Physics, 2022 We present the $T$-flow renormalization group method, which computes the memory kernel for the density-operator evolution of an open quantum system by lowering the physical temperature $T$ of its environment.
Konstantin Nestmann, Maarten R. Wegewijs
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