نتایج جستجو برای: electron correlation
تعداد نتایج: 687495 فیلتر نتایج به سال:
We consider a plasma consisting of particle components with different temperatures. The components are uniformly distributed in the configuration space and MAXwELiian in the velocity space. Pair correlations are assumed to be small and higher order correlations negligible. It is shown from the BBGKY-hierarchy that the influence of the electrons on the ion kinetics can be taken into account by t...
A two-electron spin-independent operator is defined to represent the spatial correlation of the electrons in a general atom or ion. The spherical-tensor expansion of this operator provides a systematic method for evaluating the two-electron correlation function implied by a Hartree-Fock N-electron wave function including arbitrary configuration mixing. The method is illustrated by examples invo...
A theoretical description is presented for a single-electron transport through a vertical gated quantum dot. Using the configuration interaction method we study the correlation effects in the gated quantum dots. We have found that the electron-electron correlation only slightly changes the single-electron tunnelling conditions in the absence of an external magnetic field, but has a pronounced i...
in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...
WIGNER HIGH-ELECTRON-CORRELATION REGIME OF NON-UNIFORM DENSITY SYSTEMS: A QUANTAL-DENSITY-FUNCTIONAL-THEORY STUDY by DOUGLAS M. ACHAN Advisor: Prof. Lou Massa The Wigner regime of a system of electrons in an external field is characterized by a low electron density and a high electron-interaction energy relative to the kinetic energy. The low correlation regime is in turn described by a high el...
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