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
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Date
2016-05-06
Authors
Uma Lavanya, Ch
Chatterjee, Ashok
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Abstract
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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AIP Conference Proceedings. v.1728