Results 31 to 40 of about 7,625,136 (322)

Lattice perturbation theory [PDF]

open access: yesNuclear 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

SMD-based numerical stochastic perturbation theory

open access: yesEuropean 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

Systematic Resummed Perturbation Theory [PDF]

open access: yes, 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

Chiral perturbation theory [PDF]

open access: yesIl 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

Unquenched Numerical Stochastic Perturbation Theory [PDF]

open access: yes, 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

Perturbation theory for normal operators [PDF]

open access: yes, 2011
Let $E \ni x\mapsto A(x)$ be a $\mathscr{C}$-mapping with values unbounded normal operators with common domain of definition and compact resolvent. Here $\mathscr{C}$ stands for $C^\infty$, $C^\omega$ (real analytic), $C^{[M]}$ (Denjoy--Carleman of ...
Rainer, Armin
core   +1 more source

Many-Body Perturbation Theories for Finite Nuclei

open access: yesFrontiers 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
doaj   +1 more source

Dimensional continuation without perturbation theory [PDF]

open access: yes, 1995
A formula is proposed for continuing physical correlation functions to non-integer numbers of dimensions, expressing them as infinite weighted sums over the same correlation functions in arbitrary integer dimensions.
Periwal, Vipul
core   +3 more sources

Chiral perturbation theory [PDF]

open access: yesReports on Progress in Physics, 1995
An introduction to the basic ideas and methods of Chiral Perturbation Theory is presented. Several phenomenological applications of the effective Lagrangian technique to strong, electromagnetic and weak interactions are discussed.
openaire   +4 more sources

A perturbation correction of the Flory-Huggins polymer solution theory

open access: yesCondensed 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
doaj   +1 more source

Home - About - Disclaimer - Privacy