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Electric-Field Induced Majorana Fermions in Armchair Carbon Nanotubes
Jelena Klinovaja, Suhas Gangadharaiah, Daniel Loss
We consider theoretically an armchair Carbon nanotube (CNT) in the presence of an electric field and in contact with an s-wave superconductor. We show that the proximity effect ope…
Singlet-triplet splitting in double quantum dots due to spin orbit and hyperfine interactions
Dimitrije Stepanenko, Mark Rudner, Bertrand I. Halperin +1
We analyze the low-energy spectrum of a two-electron double quantum dot under a potential bias in the presence of an external magnetic field. We focus on the regime of spin blockad…
Incoherent dynamics in the toric code subject to disorder
Beat Röthlisberger, James R. Wootton, Robert M. Heath +2
We numerically study the effects of two forms of quenched disorder on the anyons of the toric code. Firstly, a new class of codes based on random lattices of stabilizer operators i…
Thin-Film Magnetization Dynamics on the Surface of a Topological Insulator
Yaroslav Tserkovnyak, Daniel Loss
We theoretically study the magnetization dynamics of a thin ferromagnetic film exchange-coupled with a surface of a strong three-dimensional topological insulator. We focus on the…
Ferromagnetic order of nuclear spins coupled to conduction electrons: a combined effect of the electron-electron and spin-orbit interactions
Robert Andrzej Zak, Dmitrii L. Maslov, Daniel Loss
We analyze the ordered state of nuclear spins embedded in an interacting two-dimensional electron gas (2DEG) with Rashba spin-orbit interaction (SOI). Stability of the ferromagneti…
Localized end states in density modulated quantum wires and rings
Suhas Gangadharaiah, Luka Trifunovic, Daniel Loss
We study finite quantum wires and rings in the presence of a charge density wave gap induced by a periodic modulation of the chemical potential. We show that the Tamm-Shockley boun…