163 citations · 1.1k across the 31 of their papers we have counts for
5 papers · 1 filter
Detecting nonlocal Cooper pair entanglement by optical Bell inequality violation
Simon E. Nigg, Rakesh P. Tiwari, Stefan Walter +1
Based on the Bardeen Cooper Schrieffer (BCS) theory of superconductivity, the coherent splitting of Cooper pairs from a superconductor to two spatially separated quantum dots has b…
Josephson effect in normal and ferromagnetic topological insulator planar, step and edge junctions
Jennifer Nussbaum, Thomas L. Schmidt, Christoph Bruder +1
We investigate Josephson junctions on the surface of a three-dimensional topological insulator in planar, step, and edge geometries. The elliptical nature of the Dirac cone represe…
Non-Abelian parafermions in time-reversal invariant interacting helical systems
Christoph P. Orth, Rakesh P. Tiwari, Tobias Meng +1
The interplay between bulk spin-orbit coupling and electron-electron interactions produces umklapp scattering in the helical edge states of a two-dimensional topological insulator.…
Quantum charge pumping through fractional Fermions in charge density modulated quantum wires and Rashba nanowires
Arijit Saha, Diego Rainis, Rakesh P. Tiwari +1
We study the phenomenon of adiabatic quantum charge pumping in systems supporting fractionally charged fermionic bound states, in two different setups. The first quantum pump setup…
Signatures of tunable Majorana-fermion edge states
Rakesh P. Tiwari, U. Zülicke, C. Bruder
Chiral Majorana-fermion modes are shown to emerge as edge excitations in a superconductor--topological-insulator hybrid structure that is subject to a magnetic field. The velocity…