The Holstein-Hubbard model with Gaussian anharmonicity in one-dimension at half filling

The Holstein-Hubbard model with Gaussian anharmonicity in one-dimension at half filling

The Holstein-Hubbard model(HHM) with Gaussian anharmonicityis studied at half filling in one-dimension using a variational method based on a series of canonical transformations. It is shown that the anharmonicityincreases the width of the intermediate metallic phase at the SDW-CDW crossover region.

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Bibliographische Detailangaben
Hauptverfasser: Lavanya, Ch. Uma, Chatterjee, Ashok
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Anharmonicity
Crossovers
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Beschreibung
Zusammenfassung:The Holstein-Hubbard model(HHM) with Gaussian anharmonicityis studied at half filling in one-dimension using a variational method based on a series of canonical transformations. It is shown that the anharmonicityincreases the width of the intermediate metallic phase at the SDW-CDW crossover region.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4946528