Results 41 to 50 of about 326,761 (366)

Renormalization schemes for the Two-Higgs-Doublet Model and applications to h -> WW/ZZ -> 4fermions [PDF]

, 2017
We perform the renormalization of different types of Two-Higgs-Doublet Models for the calculation of observables at next-to-leading order. In detail, we suggest four different renormalization schemes based on on-shell renormalization conditions as far as
Altenkamp, Lukas, Dittmaier, Stefan, Rzehak, Heidi   +2 more
core   +2 more sources

Renormalization of Galilean electrodynamics [PDF]

Journal of High Energy Physics, 2020
AbstractWe study the quantum properties of a Galilean-invariant abelian gauge theory coupled to a Schrödinger scalar in 2+1 dimensions. At the classical level, the theory with minimal coupling is obtained from a null-reduction of relativistic Maxwell theory coupled to a complex scalar field in 3+1 dimensions and is closely related to the Galilean ...
Shira Chapman, Lorenzo Di Pietro, Kevin T. Grosvenor, Ziqi Yan   +3 more
openaire   +4 more sources

Optimizing Expected Shortfall under an ℓ₁ Constraint—An Analytic Approach

Entropy, 2021
Expected Shortfall (ES), the average loss above a high quantile, is the current financial regulatory market risk measure. Its estimation and optimization are highly unstable against sample fluctuations and become impossible above a critical ratio r=N/T ...
Gábor Papp, Imre Kondor, Fabio Caccioli
doaj   +1 more source

Vacuum Interaction of Crossed Cosmic Strings

Universe, 2021
In this paper, we consider the vacuum energy of a scalar field in the spacetime of two non-parallel cosmic strings. To this end, we obtain metrics for orthogonal straight cosmic strings and for slightly nonparallel strings.
Irina G. Pirozhenko
doaj   +1 more source

Renormalization: general theory [PDF]

arXiv, 2023
We review the theory of renormalization, including perturbative renormalization, regularized functional integrals, Renormalization Group and rigorous renormalization.
arxiv  

Differential Renormalization, the Action Principle and Renormalization Group Calculations [PDF]

Z.Phys. C67 (1995) 531-541, 1994
General prescriptions of differential renormalization are presented. It is shown that renormalization group functions are straightforwardly expressed through some constants that naturally arise within this approach. The status of the action principle in the framework of differential renormalization is discussed.
arxiv   +1 more source

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, A. McKane, A.J. McKane, C. De Dominicis, C. Greiner, C. Wetterich, D. Boyanovsky, D. Forster, D. Hochberg, D. Hochberg, D. O’Connor, D. O’Connor, D.A.R. Dalvit, E. Calzetta, E. Calzetta, E. Calzetta, E. Calzetta, E. Calzetta, E. Calzetta, E. Frey, E. Hopf, E. Medina, E.A. Calzetta, E.A. Calzetta, Esteban Calzetta, F. Cooper, F. Lombardo, F.J. Wegner, G. Zhou, H. van Beijeren, H. van Hees, H.K. Janssen, J. IIiopoulos, J. Krug, J. Schwinger, J.B. Hartle, J.D. Cole, J.E. Lidsey, Juan Zanella, K.J. Wiese, K.J. Wiese, L.-Y. Chen, L.-Y. Chen, L.V. Keldysh, M. Kardar, M. Kardar, M. Morikawa, P.C. Hohenberg, P.C. Martin, R. Feynman, R. Jackiw, S.F. Shandarin, S.K. Ma, T. Kunihiro, T. Kunihiro, V.S. L’vov, Y. Zhou   +56 more
core   +2 more sources

Centered Polygonal Lacunary Graphs: A Graph Theoretic Approach to p-Sequences of Centered Polygonal Lacunary Functions

Mathematics, 2019
This work is on the nature and properties of graphs which arise in the study of centered polygonal lacunary functions. Such graphs carry both graph-theoretic properties and properties related to the so-called p-sequences found in the study of centered ...
Keith Sullivan, Drew Rutherford, Darin J. Ulness   +2 more
doaj   +1 more source

A measure of identifying influential community based on the state of critical functionality

Mathematical Biosciences and Engineering, 2020
As an open issue, the measure of community influential is no uniform standard, how to measure the influence of community has attracted extensive attention. This paper proposed a quantitative measure to identify the influence of community.
Mingli Lei , Daijun Wei
doaj   +1 more source

Functional renormalization group approach to the sine-Gordon model [PDF]

Phys.Rev.Lett.102:241603,2009, 2009
The renormalization group flow is presented for the two-dimensional sine-Gordon model within the framework of the functional renormalization group method by including the wave-function renormalization constant. The Kosterlitz-Thouless-Berezinski type phase structure is recovered as the interpolating scaling law between two competing IR attractive area ...
arxiv   +1 more source