Many-variable variational Monte Carlo study of superconductivity in two-band Hubbard models with an incipient band

We study superconductivity in two-band models where one of the bands does or does not intersect the Fermi level depending on the parameter values. Applying a many-variable variational Monte Carlo method for a Hubbard model on two-leg ladder and bilayer square lattices, we show that superconductivity...

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Bibliographic Details
Main Authors: Daichi Kato, Kazuhiko Kuroki
Format: Article
Language:English
Published: American Physical Society 2020-05-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.023156