$Extended Hubbard model on a C$_{20}$ molecule$

Extended Hubbard model on a C$_{20}$ molecule

The electronic correlations on a C$_{20}$ molecule, as described by an extended Hubbard Hamiltonian with a nearest neighbor Coulomb interaction of strength $V$, are studied using quantum Monte Carlo and exact diagonalization methods. For electron doped C$_{20}$, it is known that pair-binding a...

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Veröffentlicht in:	arXiv.org 2007-06
Hauptverfasser:	Lin, Fei, Sørensen, Erik S, Kallin, Catherine, Berlinsky, A John
Format:	Artikel
Sprache:	eng
Schlagworte:	Binding Computer simulation Correlation Doping Magnetic properties Monte Carlo simulation Physics - Strongly Correlated Electrons Physics - Superconductivity
Online-Zugang:	Volltext
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Zusammenfassung:	The electronic correlations on a C$_{20}$ molecule, as described by an extended Hubbard Hamiltonian with a nearest neighbor Coulomb interaction of strength $V$, are studied using quantum Monte Carlo and exact diagonalization methods. For electron doped C$_{20}$, it is known that pair-binding arising from a purely electronic mechanism is absent within the standard Hubbard model (V=0). Here we show that this is also the case for hole doping for \(0
ISSN:	2331-8422
DOI:	10.48550/arxiv.0706.0331

Zusammenfassung:	The electronic correlations on a C\(_{20}\) molecule, as described by an extended Hubbard Hamiltonian with a nearest neighbor Coulomb interaction of strength \(V\), are studied using quantum Monte Carlo and exact diagonalization methods. For electron doped C\(_{20}\), it is known that pair-binding arising from a purely electronic mechanism is absent within the standard Hubbard model (V=0). Here we show that this is also the case for hole doping for \(0
ISSN:	2331-8422
DOI:	10.48550/arxiv.0706.0331

Extended Hubbard model on a C\(_{20}\) molecule