Results 21 to 30 of about 156,184 (217)
Renormalization group and nonequilibrium action in stochastic field theory [PDF]
, 2002 We investigate the renormalization group approach to nonequilibrium field theory. We show that it is possible to derive nontrivial renormalization group flow from iterative coarse graining of a closed-time-path action.
A. Berera +56 more
core +2 more sources
Rapidity Renormalization Group
Physical Review Letters, 2012 We introduce a systematic approach for the resummation of perturbative series which involves large logarithms not only due to large invariant mass ratios but large rapidities as well. A series of this form can appear in a variety of gauge theory observables.
Jui-yu, Chiu +3 more
openaire +3 more sources
On avoiding Ostrogradski instabilities within Asymptotic Safety [PDF]
, 2017 We study the renormalization group flow of gravity coupled to scalar matter using functional renormalization group techniques. The novel feature is the inclusion of higher-derivative terms in the scalar propagator.
Becker, Daniel +2 more
core +3 more sources
Nested Selves: Self‐Organization and Shared Markov Blankets in Prenatal Development in Humans
Topics in Cognitive Science, EarlyView., 2023 Abstract The immune system is a central component of organismic function in humans. This paper addresses self‐organization of biological systems in relation to—and nested within—other biological systems in pregnancy. Pregnancy constitutes a fundamental state for human embodiment and a key step in the evolution and conservation of our species. While not
Anna Ciaunica +3 more
wiley +1 more source
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
doaj +1 more source
Renormalization Group in Non-Relativistic Quantum Statistics [PDF]
EPJ Web of Conferences, 2020 Dynamic behaviour of a boson gas near the condensation transition in the symmetric phase is analyzed with the use of an effective large-scale model derived from time-dependent Green functions at finite temperature.
Honkonen Juha +4 more
doaj +1 more source
Renormalization Group in Quantum Mechanics [PDF]
, 2000 We establish the renormalization group equation for the running action in the context of a one quantum particle system. This equation is deduced by integrating each fourier mode after the other in the path integral formalism. It is free of the well known
Bonanno A +5 more
core +2 more sources
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
doaj +1 more source
Renormalization Group evolution from on-shell SMEFT
Journal of High Energy Physics, 2021 We describe the on-shell method to derive the Renormalization Group (RG) evolution of Wilson coefficients of high dimensional operators at one loop, which is a necessary part in the on-shell construction of the Standard Model Effective Field Theory ...
Minyuan Jiang, Teng Ma, Jing Shu
doaj +1 more source
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
doaj