189 citations · 1.9k across the 51 of their papers we have counts for
4 papers · 1 filter
Anomalous Josephson current through a spin-orbit coupled quantum dot
A. Zazunov, R. Egger, T. Jonckheere +1
For a general model of a mesoscopic multi-level quantum dot, we determine the necessary conditions for the existence of an anomalous Josephson current with spontaneously broken tim…
Josephson effect for SU(4) carbon nanotube quantum dots
A. Zazunov, A. Levy Yeyati, R. Egger
We present the theory of the Josephson effect in nanotube dots where an SU(4) symmetry can be realized. We find a remarkably rich phase diagram that significantly differs from the…
Non-equilibrium supercurrent through a quantum dot: current harmonics and proximity effect due to a normal metal lead
Thibaut Jonckheere, Alex Zazunov, K. Bayandin +2
We consider a Hamiltonian model for a quantum dot which is placed between two superconducting leads with a constant bias imposed between these leads. Using the non-equilibrium Keld…
Critical Josephson current through a bistable single-molecule junction
Andreas Schulz, Alex Zazunov, Reinhold Egger
We compute the critical Josephson current through a single-molecule junction. As a model for a molecule with a bistable conformational degree of freedom, we study an interacting si…