Results 71 to 80 of about 232,370 (265)
Renormalization Group Equation for Tsallis Statistics
Advances in High Energy Physics, 2018 The nonextensive statistics proposed by Tsallis has found wide applicability, being present even in the description of experimental data from high energy collisions. A system with a fractal structure in its energy-momentum space, named thermofractal, was
Airton Deppman
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General scalar renormalisation group equations at three-loop order
Journal of High Energy Physics, 2020 For arbitrary scalar QFTs in four dimensions, renormalisation group equations of quartic and cubic interactions, mass terms, as well as field anomalous dimensions are computed at three-loop order in the MS ¯ $$ \overline{\mathrm{MS}} $$ scheme. Utilising
Tom Steudtner
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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 coefficients and the S-matrix [PDF]
Journal of High Energy Physics, 2016 We show how to use on-shell unitarity methods to calculate renormalization group coefficients such as beta functions and anomalous dimensions. The central objects are the form factors of composite operators. Their discontinuities can be calculated via phase-space integrals and are related to corresponding anomalous dimensions.
Caron Huot, Simon, Wilhelm, Matthias
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Ultrafast Anisotropic Optical‐Gap Shift in Low‐Symmetry Layered GeS
Advanced Optical Materials, EarlyView.This study reveals ultrafast, anisotropic optical‐gap shift dynamics in GeS. Optical excitation induces a significant redshift in the polarization along the zigzag direction, about three times greater than that along the perpendicular armchair direction.
Sung Bok Seo +5 more
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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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The Bogolyubov renormalization group
Russian Mathematical Surveys, 1994 We begin with personal notes describing the atmosphere of "Bogoliubov renormalization group" birth. Then we expose the history of RG discovery in the QFT and of the RG method devising in the mid-fifties. The third part is devoted to proliferation of RG ideas into diverse parts of theoretical physics.
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The Rise of Chalcohalide Solar Cells: Comprehensive Insights From Materials to Devices
Advanced Science, EarlyView.This review provides a detailed overview of recent advancements in chalcohalide solar cells, focusing on structure design, material chemistry, synthesis methods, and device optimization. It also highlights future directions for improving device efficiency through innovative device architectures and synthesis techniques, addressing key challenges in ...
Hongrui Zhang +7 more
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A Renormalization Group Procedure for Fiber Bundle Models
Frontiers in Physics, 2018 We introduce two versions of a renormalization group scheme for the equal load sharing fiber bundle model. The renormalization group is based on formulating the fiber bundle model in the language of damage mechanics.
Srutarshi Pradhan +3 more
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Hard-soft renormalization and the exact renormalization group [PDF]
Nuclear Physics B, 1998 The Wilsonian exact renormalization group gives a natural framework in which ultraviolet and infrared divergences can be treated separately. In massless QED we introduce, as the only mass parameter, a renormalization scale $ _R > 0$. We prove, using the flow equation technique, that infrared convergence is a necessary consequence of any zero ...
M. Pernici, M. Raciti, F. Riva
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