Correlation-enhanced electron-phonon interaction in a strongly correlated electron system
نویسندگان
چکیده
منابع مشابه
A NUMERICAL RENORMALIZATION GROUP APPROACH FOR AN ELECTRON-PHONON INTERACTION
A finite chain calculation in terms of Hubbard X-operators is explored by setting up a vibronic Harniltonian. The model conveniently transformed into a form so that in the case of strong coupling a numerical renormalization group approach is applicable. To test the technique, a one particle Green function is calculated for the model Harniltonian
متن کاملSTRONGLY CORRELATED ELECTRONS IN SOLIDS - II Superconductivity and electron-phonon interaction
Figure 3: Spatial representation of a Cooper pair. The lattice distortions shown by pink and green shadings have been produced by the electrons at r2and r1 respectively and trap the electrons with opposite spins in a singlet state. So far we have seen that the original properties of electronic matter are mostly governed by the magnitude of the Coulomb repulsion between electrons which is essent...
متن کاملa numerical renormalization group approach for an electron-phonon interaction
a finite chain calculation in terms of hubbard x-operators is explored by setting up a vibronic harniltonian. the model conveniently transformed into a form so that in the case of strong coupling a numerical renormalization group approach is applicable. to test the technique, a one particle green function is calculated for the model harniltonian
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1995
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.51.3850