Non-equilibrium transport and dynamics in conventional and topological superconducting junctions (2017-2020)

funded by DPG-German Research Foundation, University of Konstanz, Germany. This project concerns the theoretical study of quantum transport and non-equilibrium dynamics in superconducting junctions coupled to an electromagnetic environment and microwave irradiation, taking into account quasiparticle effects. This project sets out to study the effects of quasiparticles in state-of-the-art novel superconducting junctions including atomic point contacts, short nanowires, and topological junctions. Specifically, motivated by recent results in Andreev spectroscopy experiments, this project will study the properties of junctions when they are irradiated by microwaves to reveal the Andreev excitation spectrum and its dynamics. For such systems, we will provide a theoretical framework for the non-equilbrium dynamics of the quasiparticles based on the interplay between the time-dependent external field and the fluctuations of the electromagnetic environment.


For such systems, we will provide a theoretical framework for the non-equilbrium dynamics of the quasiparticles based on the interplay between the time-dependent external field and the fluctuations of the electromagnetic environment.


Time-dependent transport and correlations in electron nanostructures (2016-2019)

project C03 of the SFB-767, Collaborative Research Center, University of Konstanz, Germany.

We aim to develop the theory of the current and its fluctuations in mesoscopic conductors coupled to a resonant environment. Such resonances can either be realized in plasmonic nano­structures, or using artificial circuits. For instance, coupling a mesoscopic conductor to a superconducting microwave cavity allows to investigate correlated photon-charge transfer processes. The goal is to correlate the electronic fluctuations and the radia­tive emission beyond the Gaussian noise.


Many-body interactions and decoherence in superconducting Josephson qubits (2015-2018)

funded by Research Seed Capital program (RiSC), Baden-Württemberg, Germany.

This research project concerns the theoretical study of the decoherence dynamics in 1D lattice of superconducting qubits. The project aims to uncover the response of precisely tailored many-qubit systems, interacting with the environment, and characterized by some topological constraints and/or geometrical frustrations. The main goal is to describe the decoherence dynamics in such special configurations.


Andreev spectroscopy for the Detection of Majorana particles (2015-2016)

funded by Young Scholar Funds, Excellence Initiative, University of Konstanz, Germany.

This project concerns the theoretical study of a proposal for detecting Majorana particles in solid-state devices. We will study the possibility to reveal Majoranas using spectroscopic measurements of the subgap excitations (Andreev bound states) in topological superconducting junctions hosting Majorana states as lowest energy states.