5 papers
Artificial Graphene: Unconventional Superconductivity in a Honeycomb Superlattice
Tommy Li, Julian Ingham, Harley D. Scammell
Artificial lattices have served as a platform to study the physics of unconventional superconductivity. We study semiconductor artificial graphene -- a honeycomb superlattice impos…
Symmetry-protected spin gaps in quantum wires
Tommy Li
This work shows that a strongly correlated phase which is gapped to collective spin excitations but gapless to charge fluctuations emerges as a universal feature in one-dimensional…
Coulomb-interaction-induced Majorana edge modes in nanowires
Tommy Li, Michele Burrello, Karsten Flensberg
We show that Majorana edge modes appear in a strongly correlated phase of semiconducting nanowires with discrete rotational symmetry in the cross section. These modes exist in the…
Four-Majorana qubit with charge readout: dynamics and decoherence
Tommy Li, William A. Coish, Michael Hell +2
We present a theoretical analysis of a Majorana-based qubit consisting of two topological superconducting islands connected via a Josephson junction. The qubit is operated by elect…
Semiclassical Landau quantization of spin-orbit coupled systems
Tommy Li, Baruch Horovitz, Oleg P. Sushkov
A semiclassical quantization condition is derived for Landau levels in general spin-orbit coupled systems. This generalizes the Onsager quantization condition via a matrix-valued p…