5 papers
Many-body Josephson diode effect in superconducting quantum interferometers
Zelei Zhang, Jianxiong Zhai, Yi Zhang +1
We propose a many-body mechanism for a strong Josephson diode effect (JDE) in an interacting nanoscale SQUID formed by two parallel quantum dots coupled to superconducting leads. U…
Excitonic correlations in the equilibrium and voltage-biased bilayer Hubbard model: multi-orbital two-particle self-consistent approach
Jiawei Yan, Jonas B. Profe, Yuta Murakami +1
We develop a nonequilibrium multi-orbital extension of the two-particle self-consistent theory and apply it to the bilayer Hubbard model as a minimal platform to investigate correl…
Multi-orbital two-particle self-consistent approach -- strengths and limitations
Jonas B. Profe, Jiawei Yan, Karim Zantout +2
Extending many-body numerical techniques which are powerful in the context of simple model calculations to the realm of realistic material simulations can be a challenging task. Re…
Auxiliary dynamical mean-field approach for Anderson-Hubbard model with off-diagonal disorder
Zelei Zhang, Jiawei Yan, Li Huang +1
This work reports a theoretical framework that combines the auxiliary coherent potential approximation (ACPA-DMFT) with dynamical mean-field theory to study strongly correlated and…
Real-frequency TPSC+DMFT investigation of the square-lattice Hubbard model
Lei Geng, Jiawei Yan, Philipp Werner
We investigate the two-dimensional Hubbard model using a real-frequency implementation of the TPSC+DMFT approach. This hybrid method combines the nonlocal correlations captured by…