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New version of the Rayleigh-Schrodinger perturbation theory
New version of the Rayleigh-Schrodinger perturbation theory...
BE - Teoretická fyzika
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
New Version of the Rayleigh-Schrodinger Perturbation Theory : Examples
New Version of the Rayleigh-Schrodinger Perturbation Theory : Examples...
BM - Fyzika pevných látek a magnetismus
- 2004 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
On the use of Brillouin-Wigner perturbation theory for many-body systems
The use of Brillouin-Wigner perturbation theory in describing many-body systems is critically re-examined.
BE - Teoretická fyzika
- 2000 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Features, Paradoxes and Amendments of Perturbative Non-Hermitian Quantum Mechanics
a mild amendment of the so-called Rayleigh-Schrodinger perturbation-expansion the ubiquitous presence of perturbations, random or specific. In this paper, it is shown that they include, i.a., the study of generic ...
Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
- 2024 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
On the use of MP2 theory for electron correlation in atoms and molecules
more thorough analysis. Combining the Rayleigh-Schrodinger and the Brillouin-Wigner perturbation expansions avoids an infinite order expansion and yields a closed expressionThe use of Moeller-Plesset perturbation ...
BE - Teoretická fyzika
- 2001 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
On the generalized multi-reference Brillouin-Wigner coupled cluster theory
The generalized multireference Brillouin-Wigner coupled cluster theory is presented for the case of a single root function. The Bloch-like equation and the Lippmann-Schwinger-like equation for the generalized multireference Brillouin-Wigner perturbat...
BE - Teoretická fyzika
- 2001 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Theory of Response to Perturbations in Non-Hermitian Systems Using Five-Hilbert-Space Reformulation of Unitary Quantum Mechanics
Non-Hermitian quantum-Hamiltonian-candidate combination H lambda of a non-Hermitian unperturbed operator H=H0 with an arbitrary 'small' non-Hermitian perturbation lambda W is given a mathematically consistent unitary-evolution interpretation...
Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
- 2020 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Perturbation method for non-square Hamiltonians and its application to polynomial oscillators
A remarkable extension of Rayleigh-Schrodinger perturbation method is found and described. Its (N + q) x (N + 1)dimensional Hamiltonians are assumed emerging during quasi-exact constructions of bound states. At all q > 1, t...
BE - Teoretická fyzika
- 2005 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Many-body Brillouin-Wigner second-order perturbation theory: A robust and efficient approach to the multireference correlation problem
-specific multireference Rayleigh-Schrodinger-like perturbation theory. It is shown that multireference many-body Brillouin-Wigner perturbation theory when restricted to second-orderThe multireference, state-specif...
BE - Teoretická fyzika
- 2007 •
- D
Rok uplatnění
D - Stať ve sborníku
Quantum square-well with logarithmic central spike
Singular repulsive barrier V (x) = -g ln(vertical bar x vertical bar) inside a square-well is interpreted and studied as a linear analog of the state-dependent interaction L-eff(x) = -g ln[psi* (x)psi(x)] in nonlinear Schrodinger equation. I...
Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
- 2018 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
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