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Phase diagram of two-dimensional electron–hole Hubbard model

✍ Scribed by Kenichi Asano; Tetsuo Ogawa

Publisher: Elsevier Science
Year: 2008
Tongue: English
Weight: 133 KB
Volume: 40
Category: Article
ISSN: 1386-9477
DOI: 10.1016/j.physe.2007.08.044

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✦ Synopsis

We investigated the ground state of the electron-hole Hubbard model by the slave-boson mean field approximation, taking into account the spin degrees of freedom of electrons and holes. We find three phases: electron-hole plasma, exciton-gas, and biexciton-gas phases.

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