27 citations · 145 across the 13 of their papers we have counts for
13 papers
Symmetry-Induced Weyl Nodes in Interacting Multi-Terminal Josephson Junctions
Peter Zalom, Gustavo Diniz, David Christian Ohnmacht +1
We show that an emergent geometric symmetry generates non-trivial topology in quantum-dot-based multi-terminal Josephson junctions. It confines same-spin Andreev bound state crossi…
Andreev bound state spectroscopy of a quantum-dot-based Aharonov-Bohm interferometer with superconducting terminals
Peter Zalom, Don Rolih, Rok Žitko
We analytically and numerically investigate an Aharonov-Bohm interferometer with two superconducting terminals and a strongly correlated quantum dot in one arm. Through a rigorous…
Double-quantum-dot Andreev molecules: Phase diagrams and critical evaluation of effective models
Peter Zalom, Kacper Wrześniewski, Tomáš Novotný +1
This work systematically investigates the phase diagram of a parallel double-quantum-dot Andreev molecule, where the two quantum dots are coupled to a common superconducting lead.…
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…
Rigorous Wilsonian Renormalization Group for impurity models with a spectral gap
Peter Zalom
The Anderson impurity model (AIM) has long served as a cornerstone in the study of correlated electron systems. While numerical renormalization group (RG) offers great flexibility…
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…
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…
Tunable reentrant Kondo effect in quantum dots coupled to metal-superconducting hybrid reservoirs
Peter Zalom, Tomáš Novotný
We elaborate on the recently introduced concept of reentrant Kondo effect in quantum impurities/dots coupled to hybrid metal-semiconductor contacts [G.~Diniz {\em et al.}, Phys. Re…
Spectral and transport properties of a half-filled Anderson impurity coupled to phase-biased superconducting and metallic leads
Peter Zalom, Vladislav Pokorný, Tomáš Novotný
We derive and apply a general scheme for mapping a setup consisting of a half-filled single level quantum dot coupled to one normal metallic and two superconducting phase-biased le…
Strongly correlated electrons: Analytic mean-field theories with two-particle self-consistency
Václav Janiš, Peter Zalom, Vladislav Pokorný +1
A two-particle self-consistency is rarely part of mean-field theories. It is, however, essential for avoiding spurious critical transitions and unphysical behavior. We present a ge…
Magnetically-Tuned Kondo Effect in a Molecular Double Quantum Dot: Role of the Anisotropic Exchange
Peter Zalom, Joeri de Bruijckere, Rocco Gaudenzi +3
We investigate theoretically and experimentally the singlet-triplet Kondo effect induced by a magnetic field in a molecular junction. Temperature dependent conductance, , is…
Helical turbulent Prandtl number in the model of passive advection: Two loop approximation
Michal Hnatič, Peter Zalom
Using the field theoretic renormalization group technique in the two-loop approximation, turbulent Prandtl numbers are obtained in the general model of passive vector advected…
Spontaneous ferromagnetism in the spinor Bose gas with Rashba spin-orbit coupling
Kira Riedl, Casper Drukier, Peter Zalom +1
We show that in the two-component Bose gas with Rashba spin-orbit coupling an arbitrarily small attractive interaction between bosons with opposite spin induces spontaneous ferroma…