Many-variable variational Monte Carlo study of superconductivity in two-band Hubbard models with an incipient band
Daichi Kato, Kazuhiko Kuroki
Abstract
The authors adopt a multivariable variational Monte Carlo technique to study bilayer and two-leg ladder Hubbard models from the weakly correlated to strongly correlated regimes. Conditions for superconductivity to be strongly enhanced are presented, and the underlying physics for this enhancement is revealed
Topics & Concepts
Hubbard modelSuperconductivityMonte Carlo methodPhysicsVariational Monte CarloCondensed matter physicsStatistical physicsQuantum Monte CarloVariational methodBilayerHigh-temperature superconductivityQuantum mechanicsMultivariable calculusPhase diagramSigmaIron-based superconductors researchPhysics of Superconductivity and MagnetismSuperconductivity in MgB2 and Alloys