Superconducting Quantum Transport & Open-System Dynamics

Eduardo R. Mucciolo, Jouko Nieminen, Xiao Xiao, Wei-Chi Chiu, Michael N. Leuenberger, and Arun Bansil

Reports on Progress in Physics 89, 076502 (2026). Invited review.

This invited review develops a unified Green’s-function framework for computing dc and ac supercurrents in Josephson junctions. The formalism connects microscopic electronic structure to Andreev processes, current–phase relations, and experimentally measurable transport while accommodating realistic interfaces, disorder, spin–orbit coupling, and large device geometries.

Jouko Nieminen, Sayandip Dhara, Wei-Chi Chiu, Eduardo R. Mucciolo, and Arun Bansil

Physical Review B 107, 174524 (2023).

We applied the Green’s-function methodology to an atomistic superconductor–transition-metal-dichalcogenide–superconductor junction. The calculation resolves proximity-induced states, local density of states, and current–phase relations without discarding the chemical and orbital structure of the interface, establishing a materials-aware route for designing and comparing quantum-material Josephson devices.

Achiles F. da Mota, Mohammad M. Sadafi, Wei-Chi Chiu, Bernardo Barbiellini, et al.

APL Quantum 2, 036107 (2025).

A time-modulated environment reshapes quantum-emitter transitions and generates controllable sidebands in the scattering spectrum.