Perturbation theory
Modified contour improved perturbation theory
... The semihadronic tau decay width allows a clean extraction of the strong coupling constant at low energies. We present a modification of the standard ‘‘contour-improved’’ method based on a derivative expansion of the ...
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Alternative analysis to perturbation theory in quantum mechanics: Dyson series in matrix form
... Published online 31 January 2012 – c EDP Sciences, Societ` a Italiana di Fisica, Springer-Verlag 2012 Abstract. We develop an alternative approach to the time independent perturbation theory in non- ...
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Thermodynamic properties and phase equilibria of branched chain fluids using first- and second-order Wertheim’s thermodynamic perturbation theory
... fluid theory 共 SAFT 兲 for branched chain molecules using Wertheim’s first- and second-order thermodynamic perturbation theory with a hard-sphere reference fluid 共 SAFT-B 兲 ...second-order ...
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Extending Wertheim’s perturbation theory to the solid phase of Lennard-Jones chains: Determination of the global phase diagram
... thermodynamic perturbation theory 共 TPT1 兲 关 ...extended theory is used to determine the global 共 solid–liquid–vapor 兲 phase diagram of the LJ dimer model; the theoretical estimate of the triple ...
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Baryon chiral perturbation theory in its manifestly covariant forms and the study of πN dynamics & on the Y(2175) resonance = Teoría quiral de perturbaciones con bariones en sus formas manifiestamente covariantes y el estudio de la dinámica πN & sobre la
... In the previous sections, we saw how to construct a Lagrangian invariant under a group G spontaneously broken into a a subgroup H where the Gold- stone bosons appear as the coordinates (ξ) of the broken symmetry gener- ...
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Fluid–solid equilibria of flexible and linear rigid tangent chains from Wertheim’s thermodynamic perturbation theory
... thermodynamic perturbation theory is proposed to describe the global phase behavior of linear rigid tangent hard sphere ...proposed theory can be used to describe correctly the equation of state, ...
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The phase diagram of the two center Lennard-Jones model as obtained from computer simulation and Wertheim’s thermodynamic perturbation theory
... turbation theory and equations of state of complex fluids, in the 1980’s Wertheim 37– 40 presented a series of seminal pa- pers developing a theory for associating ...the theory, known as first-order ...
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TítuloGastrointestinal Spatiotemporal mRNA Expression of Ghrelin vs Growth Hormone Receptor and New Growth Yield Machine Learning Model Based on Perturbation Theory
... The management of ruminant growth yield has economic importance. The current work presents a study of the spatiotemporal dynamic expression of Ghrelin and GHR at mRNA levels throughout the gastrointestinal tract (GIT) of ...
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TítuloDecrypting strong and weak single walled carbon nanotubes interactions with mitochondrial voltage dependent anion channels using molecular docking and perturbation theory
... x-axis represents the main clusters of parameters from xn row vectors used to predict the VDAC channel nanotoxicity for individual pristine SWCNT xi, such as n: Hamada index, Ch: Chiral [r] ...
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Application of the plane wave based perturbation theory to the density modulation induced by a point charge in an electron gas
... momentum distribution function f (k) describing the population of plane-wave states of real particles (and not Landau’s quasiparticles) in the translationally invariant system differs from the ideal momentum distribution ...
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Topological Quantum Numbers Arising from Symmetries. Application to Quantum Hall Effect
... Spatial Adiabatic Perturbation Theory (SAPT) Hofstadter model.. Harper model.[r] ...
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The normalized matrix perturbation method
... a perturbation with respect to the solvable ...of perturbation, that mean, if is static or not, one must resort to the time-independent or time-dependent perturbation ...Matrix perturbation ...
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Algebraic and geometric aspects of the averaging methods on S1 Spaces
... A global averaging technique on phase spaces with symmetry was developed by S.Golin, A. Knauf, S. Marmi [28] and R. Montgomery [55] for the study of slowly varying integrable systems and extended to Poisson bundles by J. ...
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Thermal corrections to π π scattering lengths in the linear sigma model
... loop perturbation calculation ...chiral perturbation theory ...chiral perturbation theory agree quite well with our conclusions for a 2 0 ð T Þ ...
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Thermal behavior of π π scattering lengths in the Nambu Jona Lasinio model
... Our results agree qualitatively well with two previous calculations. The first one [8], was done in the frame of the chiral perturbation theory at the one-loop level, whereas the linear sigma model was used ...
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A pedagogical approach to the Magnus expansion
... Time-dependent perturbation theory as a tool to compute approximate solutions of the Schr¨ odinger equation does not preserve ...exponential perturbation theory ) provides such unitary ...
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Dynamic complexity of autonomic communication and software systems
... usual theory results always using one or another version of perturbation theory that strongly reduces real interaction processes and leads inevitably to regular kind of dynamics (even in its versions ...
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Calculation of the anomalous magnetic moment with the modified BPHZ scheme
... Among the regularization procedures of the first group the classical method of Bogoliubov, Parasiuk, Hepp and Zimmermann (BPHZ), by its conceptual clarity, is the most rigorous. In this method divergent integrals are ...
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Taxonomic evidence applying algorithms of intelligent data mining . Asteroids families
... The criterion of Zappala,Cellino,Farinella and Knezevic (1992 and subsequent) is important since an improved asteroids classification was noted in dynamic families, analyzing a numbered asteroids database, whose proper ...
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