2) many body perturbation theory 多体微扰理论 1. The single photoionization of the outermost fully occupied shell in Na,K is studied within the framework ofmany body perturbation theory. 作者用多体微扰理论(MBPT) ,对开壳层钠和钾原子的最外满壳层单光子电离过程进行了研究和理论计算 。
1.The single photoionization of the outermost fully occupied shell in Na,K is studied within the framework of many body perturbation theory.作者用多体微扰理论 (MBPT) ,对开壳层钠和钾原子的最外满壳层单光子电离过程进行了研究和理论计算 。
In order to solve the A-body Schrödinger equation both accurately and efficiently for open-shell nuclei, a novel many-body method coined as Bogoliubov many-body perturbation theory (BMBPT) was recently formalized and applied at low orders. Based on the breaking of U(1) symmetry associated wi...
Correlation contributions to the multipole moments and frequency dependent polarizabilities of molecules are described within the framework of time‐dependent coupled Hartree–Fock and many‐body perturbation theory. Computationally feasible expressions are given for the ''true'' correlation contributions to th...
In the first part, a review is made of the development of the many-body perturbation theory for the last half century. The development of methods for quantum electrodynamics (QED) calculations, which have occurred essentially in parallel, is also briefly reviewed. In the second part, an effort...
Many-body perturbation theory using the density-functional concept: beyond the GW approximation We propose an alternative formulation of many-body perturbation theory that uses the density-functional concept. Instead of the usual four-point integral e... F Bruneval,F Sottile,V Olevano,... - 《...
Finite-field many-body perturbation theory IV. Basis set optimization in MBPT calculations of molecular properties. Molecular quadrupole moments The choice of truncated basis sets and their optimization for MBPT calculations of molecular properties are discussed. It is pointed out that computing the......
A hermitian open-shell many-body perturbation theory for treating intruder states In this paper we have formulated an open-shell many-body perturbation theory ( mbpt ) that applies to an incomplete model space. The effective Hamiltonian ... A Haque,D Mukherjee - 《Pramana》 被引量: 62发表: ...
We review in this article recent developments within the framework of ab initio many-body perturbation theory aiming at providing an accurate description of the electronic and excitonic properties of π-conjugated organic systems currently used in organic photovoltaic cells. In particular, techniques such...
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