First Order Bipolaronic Transition at Finite Temperature in the Holstein Model

Details First Order Bipolaronic Transition at Finite Temperature in the Holstein Model First Order Bipolaronic Transition at Finite Temperature in the Holstein Model

2010-05-03

arxiv.org/abs/1005.0257v3

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 5 figures, J. Phys. Soc. Jpn. 79 (2010) 093702

Scientific paper

We investigate the Holstein model by using the dynamical mean-field theory combined with the exact diagonalization method. Below a critical temperature Tcr, a coexistence of the polaronic and the bipolaronic solutions is found for the same value of the electron-phonon coupling $ in the range gc1(T)

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