55 citations · 158 across the 10 of their papers we have counts for
10 papers
Correlated States in Quantum Dot Clusters Coupled to a Common Superconductor
Martin Žonda, Jakub Rękas, Tobiáš Poláček +3
We study an effective model of regular quantum dot clusters coupled to a common superconductor. By applying a canonical transformation, we map the system onto a particle-number-con…
Negative differential conductance in triangular molecular assemblies
Chao Li, Vladislav Pokorný, Prokop Hapala +7
We report the creation and characterization of a molecular-scale negative differential conductance (NDC) device by assembling a triangular trimer of 4,5,9,10-tetrabromo-1,3,6,8-tet…
Hidden symmetry in interacting-quantum-dot-based multi-terminal Josephson junctions
Peter Zalom, Martin Žonda, T. Novotný
We study a multi-terminal Josephson junction based on an interacting quantum dot coupled to superconducting BCS leads. Using an Anderson type model of a local level with an arb…
Generalized atomic limit of a double quantum dot coupled to superconducting leads
Martin Žonda, Peter Zalom, Tomáš Novotný +3
We present an exactly solvable effective model of a double quantum dot coupled to superconducting leads. This model is a generalization of the well-known superconducting atomic lim…
Effective low-energy models for superconducting impurity systems
Vladislav Pokorný, Martin Žonda
We present two complementary methods to calculate the Andreev bound state energies of a single-level quantum dot connected to superconducting leads described by the superconducting…
Unified theory of quantum phase transitions in quantum dots with gapped host bands
Peter Zalom, Martin Žonda
We present a unified theory of quantum phase transitions for half-filled quantum dots (QDs) coupled to gapped host bands. We augment the bands by additional weakly coupled metallic…
Second Order Perturbation Theory for a Superconducting Double Quantum Dot
Vladislav Pokorný, Martin Žonda, Georgios Loukeris +1
We extend our approach based on the second order perturbation theory in the Coulomb interaction recently developed for quantum dots coupled to superconducting leads to the supercon…
Correlation effects in superconducting quantum dot systems
Vladislav Pokorný, Martin Žonda
We study the effect of electron correlations on a system consisting of a single-level quantum dot with local Coulomb interaction attached to two superconducting leads. We use the s…
Josephson-phase-controlled interplay between correlation effects and electron pairing in a three-terminal nanostructure
Tadeusz Domański, Martin Žonda, Vladislav Pokorný +3
We study the subgap spectrum of the interacting single-level quantum dot coupled between two superconducting reservoirs, forming the Josephson-type circuit, and additionally hybrid…
Perturbation theory for an Anderson quantum dot asymmetrically attached to two superconducting leads
Martin Žonda, Vladislav Pokorný, Václav Janiš +1
Self-consistent perturbation expansion up to the second order in the interaction strength is used to study a single-level quantum dot with local Coulomb repulsion attached asymmetr…