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Bipolaronic excitations of interacting electron(hole) gas in one-dimensional lattice model
- Source :
-
Physica B . Nov2009, Vol. 404 Issue 21, p4225-4228. 4p. - Publication Year :
- 2009
-
Abstract
- Abstract: By developing a diagonalization scheme we observe that the dynamics of interacting electrons or holes locally coupled to dispersionless phonon mode in one-dimensional lattice can be mapped into that of paired electron or hole states (bipolaronic states), which then gives a physically appealing picture of excitation modes of the interacting electron or hole gas. As a result, the bipolaronic model of the interacting electron or hole gas, obtained from Holstein–Hubbard Hamiltonian in one-dimensional lattice, exhibits normalization of the hopping terms and leads to a reduced effective mass of the bipolaron, which essentially gives support to the bipolaronic theory of high T c superconductivity. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09214526
- Volume :
- 404
- Issue :
- 21
- Database :
- Academic Search Index
- Journal :
- Physica B
- Publication Type :
- Academic Journal
- Accession number :
- 44829530
- Full Text :
- https://doi.org/10.1016/j.physb.2009.08.001