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145 874 (0,351s)

Result

Perturbation theory using functions that are not quadratically integrable

Perturbation theory using functions that are not quadratically integrable...

BE - Teoretická fyzika

  • 2002
  • Jx
Result

Microscopic density functional theory for dendrimers

Density functional theory for a simple model of dendrimers is proposed. The theory is based on fundamental measure theory, which accounts for the hard-sphere repulsion of the segments and on the Wertheim first-orde...

CF - Fyzikální chemie a teoretická chemie

  • 2009
  • Jx
Result

Green functions in the renormalized many-body perturbation theory for correlated and disodered electrons

We review utilization of Green functions in the process of renormalization of many-body perturbation theory so that the limits of strongly correlated and strongly disordered electrons be reliably described......

BE - Teoretická fyzika

  • 2006
  • Jx
Result

Many-body Brillouin-Wigner second-order perturbation theory: A robust and efficient approach to the multireference correlation problem

formula of second-order many-body perturbation theory (MBPT2), i.e. Moller-Plesset-specific multireference Rayleigh-Schrodinger-like perturbation theory. It is shown that multireference many-body Brillouin-Wigner ...

BE - Teoretická fyzika

  • 2007
  • D
Result

τ hadronic spectral function moments in a nonpower QCD perturbation theory

in the framework of a QCD nonpower perturbation theory, defined by the technique of series function are employed to generate the higher order coefficients of the perturbation perturbation theories

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2016
  • D
  • Link
Result

Expansions of tau hadronic spectral function moments in a nonpower QCD perturbation theory with tamed large order behavior

of moments in the standard fixed-order and contour-improved perturbation theories, we consider the perturbative behavior of these moments in the framework of a QCD nonpower perturbation theory, defined by...

BE - Teoretická fyzika

  • 2013
  • Jx
  • Link
Result

SIZE-CONSISTENT BRILLOUIN-WIGNER PERTURBATION-THEORY WITH AN EXPONENTIALLY PARAMETRIZED WAVE-FUNCTION - BRILLOUIN-WIGNER COUPLED-CLUSTER THEORY

Using the Brillouin-Wigner perturbation theory we developed Brillouin-Wigner based coupled cluster theory.

CF - Fyzikální chemie a teoretická chemie

  • 1994
  • Jx
Result

On the Role of the Reference System in Perturbation Theory: An Augmented van der Waals Theory of Simple Fluids

of the traditional first-order perturbation theory of simple fluids to practically all thermodynamic states. This theory is applied to the thermodynamic functions and the liquid-Henderson perturbation

CF - Fyzikální chemie a teoretická chemie

  • 2009
  • Jx
Result

Perturbation theory of quantum resonances

We propose a contribution to the theory of quantum resonances that combines complex absorbing potentials (CAP) with standard perturbation theory. We start from resolvents that depend on two variables, the complex energy z a...

CF - Fyzikální chemie a teoretická chemie

  • 2016
  • Jx
  • Link
Result

OPE of Green Functions of Chiral Currents

with calculations of the correlators within the chiral perturbation theory and resonance chiral theory, which can lead to important constraints of the coupling constantsA study of high-energy behavior of the three-point Gr...

Particles and field physics

  • 2020
  • D
  • Link
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