52 citations · 174 across the 14 of their papers we have counts for
14 papers
Finite Length Effects and Coulomb Interaction in Ge Quantum Well-Based Josephson Junctions Probed with Microwave Spectroscopy
S. C. ten Kate, D. C. Ohnmacht, M. Coraiola +10
Proximitized Ge quantum wells have emerged as a novel platform for studying Andreev bound states (ABSs), due to their expected strong spin-orbit interaction and high mobility. Here…
Exploring the energy spectrum of a four-terminal Josephson junction: Towards topological Andreev band structures
Tommaso Antonelli, Marco Coraiola, David Christian Ohnmacht +10
Hybrid multiterminal Josephson junctions (JJs) are expected to harbor a novel class of Andreev bound states (ABSs), including topologically nontrivial states in four-terminal devic…
Theory of three-terminal Andreev spin qubits
Kiryl Piasotski, Aleksandr Svetogorov, Wolfgang Belzig +1
In this paper, we introduce a concise theoretical framework for the equilibrium three-terminal Josephson effect in spin-orbit-interacting systems, inspired by recent experiments on…
Thermodynamic properties of a superconductor interfaced with an altermagnet
Simran Chourasia, Aleksandr Svetogorov, Akashdeep Kamra +1
Recently introduced magnetic materials called altermagnets (AM) feature zero net magnetization but a momentum dependent magnetic exchange field, which can have intriguing implicati…
On-demand population of Andreev levels by their ionization in the presence of Coulomb blockade
Pavel D. Kurilovich, Vladislav D. Kurilovich, Aleksandr E. Svetogorov +3
A mechanism to deterministically prepare a nanowire Josephson junction in an odd parity state is proposed. The mechanism involves population of two Andreev levels by a resonant mic…
Flux-Tunable Josephson Diode Effect in a Hybrid Four-Terminal Josephson Junction
M. Coraiola, A. E. Svetogorov, D. Z. Haxell +10
We investigate the direction-dependent switching current in a flux-tunable four-terminal Josephson junction defined in an InAs/Al two-dimensional heterostructure. The device exhibi…
Demonstration of nonlocal Josephson effect in Andreev molecules
D. Z. Haxell, M. Coraiola, M. Hinderling +9
We perform switching current measurements of planar Josephson junctions (JJs) coupled by a common superconducting electrode, with independent control over the two superconducting p…
Phase-engineering the Andreev band structure of a three-terminal Josephson junction
M. Coraiola, D. Z. Haxell, D. Sabonis +11
In hybrid Josephson junctions with three or more superconducting terminals coupled to a semiconducting region, Andreev bound states may form unconventional energy band structures,…
Enhancement of the Kondo effect in a quantum dot formed in a full-shell nanowire
Aleksandr E. Svetogorov, Daniel Loss, Jelena Klinovaja
We analyze results of a recent experiment [D. Razmadze et al., Phys. Rev. Lett., 125, 116803 (2020)] on transport through a quantum dot between two full-shell nanowires and show th…
Quasiparticle poisoning in trivial and topological Josephson junctions
Aleksandr E. Svetogorov, Daniel Loss, Jelena Klinovaja
We study theoretically a short single-channel Josephson junction between superconductors in the trivial and topological phases. The junction is assumed to be biased by a small curr…
Insulating regime of an underdamped current-biased Josephson junction supporting and parafermions
Aleksandr E. Svetogorov, Daniel Loss, Jelena Klinovaja
We study analytically a current-biased topological Josephson junction supporting parafermions. First, we show that in an infinite-size system a pair of parafermions…
Critical current for an insulating regime of an underdamped current-biased topological Josephson junction
Aleksandr E. Svetogorov, Daniel Loss, Jelena Klinovaja
We study analytically an underdamped current-biased topological Josephson junction. First, we consider a simplified model at zero temperature, where the parity of the non-local fer…
Effect of disorder on coherent quantum phase slips in Josephson junction chains
A. E. Svetogorov, D. M. Basko
We study coherent quantum phase-slips in a Josephson junction chain, including two types of quenched disorder: random spatial modulation of the junction areas and random induced ba…
Theory of coherent quantum phase-slips in Josephson junction chains with periodic spatial modulations
Aleksandr E. Svetogorov, Masahiko Taguchi, Yasuhiro Tokura +2
We study coherent quantum phase-slips which lift the ground state degeneracy in a Josephson junction ring, pierced by a magnetic flux of the magnitude equal to half of a flux quant…