scholarly journals ELECTRON ELECTRON INTERACTION AND SOLITON EXCITATION(Ⅰ)——THE EFFECT OF ELECTRON CORRELATION ON THE LOCALIZATION OF SOLITON

1997 ◽  
Vol 46 (2) ◽  
pp. 353
Author(s):  
MA YUN-SHENG ◽  
WU CHANG-QIN ◽  
SUN XIN ◽  
FU RONG-TANG ◽  
FU ROU-LI ◽  
...  
Keyword(s):  
Electron Correlation ◽  
Electron Interaction ◽  
Soliton Excitation

scholarly journals ELECTRON ELECTRON INTERACTION AND SOLITON EXCITATION(Ⅱ)——THE EFFECT OF ELECTRON CORRELATION ON THE CREATION ENERGY OF SOLITON

1997 ◽  
Vol 46 (2) ◽  
pp. 363
Author(s):  
MA YUN-SHENG ◽  
WU CHANG-QIN ◽  
SUN XIN ◽  
FU RONG-TANG ◽  
FU ROU-LI ◽  
...  
Keyword(s):  
Electron Correlation ◽  
Electron Interaction ◽  
The Creation ◽  
Soliton Excitation

A quantum Monte Carlo study on electron correlation effects in small aluminum hydride clusters

2015 ◽  
Vol 39 (3) ◽  
pp. 2195-2201 ◽  
Author(s):  
J. Higino Damasceno ◽  
J. N. Teixeira Rabelo ◽  
Ladir Cândido
Keyword(s):  
Monte Carlo ◽  
Electron Correlation ◽  
Quantum Monte Carlo ◽  
Aluminum Hydride ◽  
Monte Carlo Study ◽  
Binding Energies ◽  
Electron Interaction ◽  
Correlation Effects ◽  
Ionic Clusters ◽  
Electron Correlation Effects

Using accurate methods we calculate binding energies to discuss the electron–electron interaction in the formation of AlnHm ionic clusters.

EFFECT OF ELECTRON CORRELATION AND SOLVENT ON THE CONFORMATIONAL TRANSITION OF DNA

2009 ◽  
Vol 23 (15) ◽  
pp. 1861-1870
Author(s):  
LINGYUN ZHANG ◽  
PENG-YE WANG
Keyword(s):  
Electron Correlation ◽  
Conformational Transition ◽  
Structural Phase ◽  
Electron Interaction ◽  
Elasticity Constant ◽  
Longitudinal Displacement ◽  
Electronic Wave Function ◽  
Dna Backbone ◽  
Field Form ◽  
Set Up

The conformational transition of DNA is studied by considering electron–electron interaction and coupling to the environment. It is shown that the effect of counterions on DNA can be expressed approximately by the change of elasticity constant of the DNA backbone. We set up the coupled nonlinear equations to describe the interaction between the longitudinal displacement of DNA backbone and the electronic wave function as well as the solvent effect. It is also proved that the longitudinal displacement of DNA statistics the ϕ4 field form. With the help of the ϕ4 statistics properties, it is illustrated that the salt concentration and electron correlation plays an important role in the structural phase transition of DNA.

ELECTRON CORRELATION AND PHOTO PHYSICS OF PHENYL SUBSTITUTED POLYACETYLENES

2001 ◽  
Vol 15 (19n20) ◽  
pp. 2793-2798 ◽  
Author(s):  
HARANATH GHOSH ◽  
S. MAZUMDAR ◽  
Alok SHUKLA
Keyword(s):  
Excited State ◽  
Electron Correlation ◽  
Ground State ◽  
Transverse Direction ◽  
Longitudinal Direction ◽  
High Energy ◽  
Electron Interaction ◽  
Many Body ◽  
Photon State ◽  
Two Photon

We investigate theoretically photoluminescence (PL) properties of mono and di-phenyl substituted trans-polyacetylene (t-PA), namely, poly-phenylacetylene (PPA) and poly-diphenylacetylene (PDPA), respectively. PL is a consequence of the occurrence of the two-photon state ( 2Ag ) above the optically excited state ( 1Bu ). Usually, electron correlation leads to confinement of 1Bu as well as the ground state. We show, in contrast, that in phenyl-substituted polyacetylenes electron–electron interactions cause enhanced delocalization of quasiparticles in the optically excited state from the backbone polyene chain into the phenyl groups. This coulomb enhanced delocalization in the transverse direction leads to confinement in the longitudinal direction and causes crossover between the 1Bu and 2Ag . We further show that in the absence of electron repulsion the low energy absorption is x-polarized whereas the high energy absorpion is predominantly y-polarized. In contrast, in presence of many body electron interaction both of them (low and high energy absorptions) are x-polarized. Thus photophysics of PPA/PDPA etc. are consequences of true many body effects.

Electron—Electron Interaction and Electron Correlation

2000 ◽  
pp. 119-155 ◽  
Author(s):  
Nobuo Tsuda ◽  
Keiichiro Nasu ◽  
Atsushi Fujimori ◽  
Kiiti Siratori
Keyword(s):  
Electron Correlation ◽  
Electron Interaction

To What Extent are Inelastically Scattered Electrons Useful in the Stem?

1973 ◽  
Vol 31 ◽  
pp. 286-287 ◽  
Author(s):  
H. Rose
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
Electron Correlation ◽  
Quantum Noise ◽  
Collection Efficiency ◽  
Scanning Transmission Electron Microscope ◽  
Electron Cloud ◽  
Scanning Time ◽  
Transmission Electron ◽  
Scanning Transmission

The scanning transmission electron microscope offers the possibility of utilizing inelastically scattered electrons. Use of these electrons in addition to the elastically scattered electrons should reduce the scanning time (dose) Which is necessary to keep the quantum noise below a certain level. Hence it should lower the radiation damage. For high resolution, Where the collection efficiency of elastically scattered electrons is small, the use of Inelastically scattered electrons should become more and more favorable because they can all be detected by means of a spectrometer. Unfortunately, the Inelastic scattering Is a non-localized interaction due to the electron-electron correlation, occurring predominantly at the circumference of the atomic electron cloud.

ELECTRON CORRELATION IN METALS EVIDENCED BY COMPTON SCATTERING

1987 ◽  
Vol 48 (C9) ◽  
pp. C9-851-C9-854 ◽  
Author(s):  
A. ISSOLAH ◽  
j. CHOMILIER ◽  
Y. GARREAU ◽  
G. LOUPIAS
Keyword(s):  
Compton Scattering ◽  
Electron Correlation
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