Results 81 to 90 of about 12,582,216 (326)
Stochastic renormalization group and gradient flow
Journal of High Energy Physics, 2020 A non-perturbative and continuous definition of RG transformations as stochastic processes is proposed, inspired by the observation that the functional RG equations for effective Boltzmann factors may be interpreted as Fokker-Planck equations. The result
Andrea Carosso
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Constraints on beta functions in field theories
SciPost Physics, 2022 The $\beta$-functions describe how couplings run under the renormalization group flow in field theories. In general, all couplings that respect the symmetry and locality are generated under the renormalization group flow, and the exact renormalization
Han Ma, Sung-Sik Lee
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Renormalization group in internal space [PDF]
Physical Review D, 2005 18 pages, no ...
Polonyi, J, Sailer, K
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Renormalization group evolution of dimension-seven baryon- and lepton-number-violating operators [PDF]
Journal of High Energy Physics, 2016 We study dimension-seven operators in standard model effective field theory. These operators are classified into two sets, one violating lepton number but preserving baryon number (ΔL = ±2, ΔB = 0) and the other violating both but preserving their sum ...
Y. Liao, Xiao-Dong Ma
semanticscholar +1 more source
Advanced Materials, EarlyView.The rise of lead halide perovskite semiconductors has enabled high‐performance LEDs with internal quantum efficiencies approaching 100%. In order to further enhance the external quantum efficiencies limited by light outcoupling effects, in this account, the strategies for reducing energy dissipation through the substrate, waveguide, and evanescent ...
Tommaso Marcato +2 more
wiley +1 more source
Ambipolar‐To‐Unipolar Conversion in Ultrathin 2D Semiconductors
Small Structures, Volume 3, Issue 12, December 2022., 2022 The applications of many 2D semiconductors have attracted considerable attention, but are severely limited by their ambipolar characteristics, which has sparked controversy about rethinking their potential. Thus, a comprehensive review is necessary for in‐depth understanding and to propose the optimum solutions for ambipolar treatment. Furthermore, the
Mohammed Ismail Beddiar +4 more
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Renormalization Group Functional Equations
, 2010 Functional conjugation methods are used to analyze the global structure of various renormalization group trajectories, and to gain insight into the interplay between continuous and discrete rescaling.
A. B. Zamolodchikov +11 more
core +1 more source
Functional and local renormalization groups [PDF]
Physical Review D, 2015 We discuss the relation between functional renormalization group (FRG) and local renormalization group (LRG), focussing on the two dimensional case as an example. We show that away from criticality the Wess-Zumino action is described by a derivative expansion with coefficients naturally related to RG quantities.
Codello A, D'Odorico G, Pagani C
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Advanced Optical Materials, EarlyView.Ultrafast transient absorption spectroscopy reveals that α‐In2Se3, a non‐toxic and air‐stable 2D material, demonstrates slow hot carrier (HC) cooling (≈35 ps), comparable to perovskites. This prolonged cooling can enable efficient energy extraction. Comprehensive analysis captures key HC dynamics, such as quasi‐Fermi shifts, many‐body interactions, and
Sung Bok Seo +4 more
wiley +1 more source
Renormalization group independence of Cosmological Attractors
Physics Letters B, 2017 The large class of inflationary models known as α- and ξ-attractors gives identical cosmological predictions at tree level (at leading order in inverse power of the number of efolds).
Jacopo Fumagalli
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