Results 11 to 20 of about 305,187 (339)
Holographic Renormalization [PDF]
Nuclear Physics B, 2001 We systematically develop the procedure of holographic renormalization for RG flows dual to asymptotically AdS domain walls. All divergences of the on-shell bulk action can be cancelled by adding covariant local boundary counterterms determined by the ...
Arutyunov +41 more
core +7 more sources
Journal of Mathematical Physics, 1996 A careful analysis of differential renormalization shows that a distinguished choice of renormalization constants allows for a mathematically more fundamental interpretation of the scheme.
Schnetz, Oliver
core +7 more sources
Exponential renormalization [PDF]
Annales Henri Poincaré, 2010 Moving beyond the classical additive and multiplicative approaches, we present an "exponential" method for perturbative renormalization. Using Dyson's identity for Green's functions as well as the link between the Faa di Bruno Hopf algebra and the Hopf ...
A. Connes +21 more
core +3 more sources
Introduction to renormalization [PDF]
Condensed Matter Physics, 2006 In these lectures I discuss peculiarities of the critical behaviour of "non-ideal" systems as it is explained by the renormalization group approach. Examples considered here include account of the single-ion anisotropy, structural disorder, frustrations.
Yu.Holovatch
doaj +5 more sources
Journal of High Energy Physics, 2011 15 pages, 3 figures, final ...
Kovács, József +3 more
openaire +3 more sources
Physical Review D, 2012 We extend our previous study of the vector charmonium states within a renormalization approach with boundary conditions to the full spectrum of charmonium and bottomonium. On the light of the predicted spectrum we comply to assignments suggested in the literature. A comparison with the regularized quark model is also included.
J. Segovia +3 more
openaire +2 more sources
On the renormalization of Hamiltonians [PDF]
AIP Conference Proceedings, 1999 We introduce a novel method for the renormalization of the Hamiltonian operator in Quantum Field Theory in the spirit of the Wilson renormalization group. By a series of unitary transformations that successively decouples the high-frequency degrees of freedom and partially diagonalizes the high-energy part, we obtain the effective Hamiltonian for the ...
G. Alexanian, Enrique Moreno
openaire +6 more sources
Topological defect lines and renormalization group flows in two dimensions [PDF]
Journal of High Energy Physics, 2018 A bstractWe consider topological defect lines (TDLs) in two-dimensional conformal field theories. Generalizing and encompassing both global symmetries and Verlinde lines, TDLs together with their attached defect operators provide models of fusion ...
Chi-Ming Chang +4 more
semanticscholar +1 more source
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
Entanglement entropy: Holography and renormalization group [PDF]
Reviews of Modern Physics, 2018 In this review the entanglement and Renyi entropies in quantum field theory are described from different points of view, including the perturbative approach and holographic dualities.
T. Nishioka
semanticscholar +1 more source