Results 21 to 30 of about 9,523,503 (222)
Renormalization group approach to spontaneous stochasticity
Physical Review Research, 2020 We develop a theoretical approach to “spontaneous stochasticity” in classical dynamical systems that are nearly singular and weakly perturbed by noise. This phenomenon is associated with a breakdown in the uniqueness of solutions for fixed initial data ...
Gregory L. Eyink, Dmytro Bandak
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Critical phenomena and functional renormalization group
He jishu, 2023 Recent progress in studies on quantum chromodynamics (QCD) phase transition and related critical phenomena within the functional renormalization group (fRG) approach were reviewed, including the nonperturbative critical exponents and baryon number ...
YIN Shi, TAN Yangyang, FU Weijie
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Renormalization group theory of earthquakes [PDF]
Nonlinear Processes in Geophysics, 1996 We study theoretically the physical origin of the proposed discrete scale invariance of earthquake processes, at the origin of the universal log-periodic corrections to scaling, recently discovered in regional seismic activity ...
H. Saleur +3 more
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Towards general scalar-Yukawa renormalisation group equations at three-loop order
Journal of High Energy Physics, 2021 For arbitrary four-dimensional quantum field theories with scalars and fermions, renormalisation group equations in the MS ¯ $$ \overline{\mathrm{MS}} $$ scheme are investigated at three-loop order in perturbation theory.
Tom Steudtner
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Dynamically driven renormalization group applied to self-organized critical systems
, 1998 The Dynamically Driven Renormalization Group is a general framework developed to study the critical properties of nonequilibrium systems with stationary states.
A. Vespignani +2 more
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Prescription dependence of renormalization-group functions [PDF]
, 1982 The dependence on the renormalization scheme of the important QCD renormalization-group parameters β , γ , and δ is discussed. We compute the second coefficient for all three parameters for several renormalization schemes which include all the ...
Espriu, D. (Domènec) +1 more
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The Renormalization Group [PDF]
, 2011 Invented as a multiscale approach to the theory of critical phenomena, the renormalization group has become a powerful mathematical tool in the analysis of infinite-dimensional systems.
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Robust Spin Splitting and Fermiology in the Layered Altermagnet CoNb4${\rm CoNb}_4$Se8${\rm Se}_8$
Advanced Materials, EarlyView.The emergence of an altermagnetic phase is demonstrated in the cobalt‐intercalated superconducting 2H‐NbSe2 polymorph. A combined theoretical and experimental approach directly probes the magnetism, the altermagnetic lifting of Kramers degeneracy, and the electronic phase space, establishing CoNb4Se8 as the first g‐wave altermagnetic layered material ...
Alessandro De Vita +47 more
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EXACT RENORMALIZATION GROUP FOR POINT INTERACTIONS
Acta Polytechnica, 2014 Renormalization is one of the deepest ideas in physics, yet its exact implementation in any interesting problem is usually very hard. In the present work, following the approach by Glazek and Maslowski in the flat space, we will study the exact ...
Osman Teoman Turgut Teoman Turgut +1 more
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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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