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Josephson transistor from the superconducting diode effect in domain wall and skyrmion magnetic racetracks
Richard Hess, Henry F. Legg, Daniel Loss +1
In superconductors, the combination of broken time-reversal and broken inversion symmetries can result in a critical current being dependent on the direction of current flow. This…
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…
Non-Majorana modes in diluted spin chains proximitized to a superconductor
Felix Küster, Sascha Brinker, Richard Hess +5
Spin chains proximitized with superconducting condensates have emerged as one of the most promising platforms for the realization of Majorana modes. Here, we craft diluted spin cha…
Tuning interactions between spins in a superconductor
Hao Ding, Yuwen Hu, Mallika T. Randeria +5
Novel many-body and topological electronic phases can be created in assemblies of interacting spins coupled to a superconductor, such as one-dimensional topological superconductors…
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…