Results 21 to 30 of about 683,210 (331)
Systematic Resummed Perturbation Theory [PDF]
, 1996 A systematic loop expansion is formulated in terms of full propagators and vertices. It is based on an expansion of the general solution of an exact non-perturbative flow equation.Comment: 11 pages ...
Wetterich, Christof
core +3 more sources
Lattice perturbation theory [PDF]
Nuclear Physics B - Proceedings Supplements, 1996 8 pages of LATEX (uses espcrc2.sty) and 1 uuencoded ps figure. (Plenary talk at Lattice 95, Melbourne)
openaire +2 more sources
Cosmological Perturbation Theory Revisited [PDF]
, 2011 Increasingly accurate observations are driving theoretical cosmology toward the use of more sophisticated descriptions of matter and the study of nonlinear perturbations of FL cosmologies, whose governing equations are notoriously complicated.
Uggla, Claes, Wainwright, John
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Chiral perturbation theory [PDF]
Il Nuovo Cimento A Series 11, 1994 The basic ideas and some recent developments of the chiral perturbation theory approach to hadron dynamics at low-energies are reviewed. (Invited talk at the HADRON'93 Conference Como, Italy June 1993.)
openaire +2 more sources
SMD-based numerical stochastic perturbation theory
European Physical Journal C: Particles and Fields, 2017 The viability of a variant of numerical stochastic perturbation theory, where the Langevin equation is replaced by the SMD algorithm, is examined. In particular, the convergence of the process to a unique stationary state is rigorously established and ...
Mattia Dalla Brida, Martin Lüscher
doaj +1 more source
Many-Body Perturbation Theories for Finite Nuclei
Frontiers in Physics, 2020 In recent years many-body perturbation theory encountered a renaissance in the field of ab initio nuclear structure theory. In various applications it was shown that perturbation theory, including novel flavors of it, constitutes a useful tool to ...
Alexander Tichai +6 more
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Improving lattice perturbation theory [PDF]
, 1995 Lepage and Mackenzie have shown that tadpole renormalization and systematic improvement of lattice perturbation theory can lead to much improved numerical results in lattice gauge theory.
A. Hasenfratz +6 more
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Unquenched Numerical Stochastic Perturbation Theory [PDF]
, 2002 The inclusion of fermionic loops contribution in Numerical Stochastic Perturbation Theory (NSPT) has a nice feature: it does not cost so much (provided only that an FFT can be implemented in a fairly efficient way).
Alles +10 more
core +3 more sources
A perturbation correction of the Flory-Huggins polymer solution theory
Condensed Matter Physics, 2005 A perturbation theory modification of the Flory-Huggins polymer solution theory is presented. The proposed perturbation equation utilizes the results by Tukur et al [J. Chem. Phys.
G.A.Mansoori
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The power of perturbation theory
Journal of High Energy Physics, 2017 We study quantum mechanical systems with a discrete spectrum. We show that the asymptotic series associated to certain paths of steepest-descent (Lefschetz thimbles) are Borel resummable to the full result.
Marco Serone +2 more
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