196 citations · 940 across the 54 of their papers we have counts for
10 papers · 1 filter
Tuning the Josephson diode response with an ac current
Rubén Seoane Souto, Martin Leijnse, Constantin Schrade +3
Josephson diodes are superconducting elements that show an asymmetry in the critical current depending on the direction of the current. Here, we theoretically explore how an altern…
Mobile Topological Su-Schrieffer-Heeger Soliton in a Josephson Metamaterial
Dushko Kuzmanovski, Rubén Seoane Souto, Patrick J. Wong +1
Circuits involving arrays of Josephson junctions have emerged as a new platform for exploring and simulating complex bosonic systems. Motivated by this advance, we develop and theo…
Josephson junction π-0 transition induced by orbital hybridization in a double quantum dot
Rousan Debbarma, Athanasios Tsintzis, Markus Aspegren +5
In this work, we manipulate the phase shift of a Josephson junction using a parallel double quantum dot (QD). By employing a superconducting quantum interference device, we determi…
DC Josephson effect between two Yu-Shiba-Rusinov bound states
Subrata Chakraborty, Danilo Nikolić, Rubén Seoane Souto +2
Motivated by recent experiments [Nat. Phys. , 1227 (2020)], we present here a theoretical study of the DC Josephson effect in a system comprising two magnetic impuriti…
Minimal Kitaev-transmon qubit based on double quantum dots
D. Michel Pino, Rubén Seoane Souto, Ramón Aguado
Minimal Kitaev chains composed of two semiconducting quantum dots coupled via a grounded superconductor have emerged as a promising platform to realize and study Majorana bound sta…
Transport-based fusion that distinguishes between Majorana and Andreev bound states
Maximilian Nitsch, Rubén Seoane Souto, Stephanie Matern +1
It has proven difficult to distinguish between topological Majorana bound states and nontopological Andreev bound states and to measure the unique properties of the former. In this…
Probing Majorana localization in minimal Kitaev chains through a quantum dot
Rubén Seoane Souto, Athanasios Tsintzis, Martin Leijnse +1
Artificial Kitaev chains, formed by quantum dots coupled via superconductors, have emerged as a promising platform for realizing Majorana bound states. Even a minimal Kitaev chain…
Supercurrent transport through 1-periodic full-shell Coulomb islands
D. Razmadze, R. Seoane Souto, E. C. T. O'Farrell +4
We experimentally investigate supercurrent through Coulomb islands, where island and leads are fabricated from semiconducting nanowires with fully surrounding superconducting shell…
Fermion-parity qubit in a proximitized double quantum dot
Max Geier, Rubén Seoane Souto, Jens Schulenborg +3
Bound states in quantum dots coupled to superconductors can be in a coherent superposition of states with different electron number but with the same fermion parity. Electrostatic…
Roadmap towards Majorana qubits and nonabelian physics in quantum dot-based minimal Kitaev chains
Athanasios Tsintzis, Rubén Seoane Souto, Karsten Flensberg +2
The possibility to engineer artificial Kitaev chains in arrays of quantum dots coupled via narrow superconducting regions has emerged as an attractive way to overcome the disorder…