87 citations · 193 across the 6 of their papers we have counts for
6 papers
Kondo effect in asymmetric Josephson couplings through a quantum dot
Yoshihide Tanaka, Akira Oguri, A. C. Hewson
Asymmetry in the Josephson couplings between two superconductors through a quantum dot is studied based on a single impurity Anderson model using the numerical renormalization grou…
Kondo screening of a high-spin Nagaoka state in a triangular quantum dot
Akira Oguri, Yunori Nisikawa, Yoshihide Tanaka +1
We study transport through a triangle triple quantum dot connected to two noninteracting leads using the numerical renormalization group (NRG). The triangle has a high-spin ground…
Quantum phase transition in a minimal model for the Kondo effect in a Josephson junction
Akira Oguri, Yoshihide Tanaka, A. C. Hewson
We propose a minimal model for the Josephson current through a quantum dot in a Kondo regime. We start with the model that consists of an Anderson impurity connected to two superco…
Effects of Electron Correlation on the Transport through a Quantum Dot Superlattice
Yoshihide Tanaka, Akira Oguri
We study correlation effects on the transport through a quantum dot superlattice using a two-dimensional Hubbard model connected to two noninteracting leads. To calculate the zero-…
Effects of disorder on conductance through small interacting systems
Yoshihide Tanaka, Akira Oguri
We study the effects of disorders on the transport through small interacting systems based on a two-dimensional Hubbard cluster of finite size connected to two noninteracting leads…
Perturbation Study of the Conductance through an Interacting Region Connected to Multi-Mode Leads
Yoshihide Tanaka, Akira Oguri, Hiroumi Ishii
We study the effects of electron correlation on transport through an interacting region connected to multi-mode leads based on the perturbation expansion with respect to the inter-…