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Transport in a thin topological insulator with potential and magnetic barriers
We study transport across either a potential or a magnetic barrier which is placed on the top surface of a three-dimensional thin topological insulator (TI). For such thin TIs, the top and bottom
Electromagnetic control of transport across a barrier on a topological insulator surface
We study ballistic transport across a time-dependent barrier present on the surface of a three-dimensional topological insulator. We show that such a barrier can be implemented for Dirac electrons on
One-dimensional spin–orbit coupled Dirac system with extended s-wave superconductivity: Majorana modes and Josephson effects
TLDR
This work studies a one-dimensional system of spin–orbit coupled massless Dirac electrons with s-wave superconducting pairing and finds that the model hosts a topological transition between topologically trivial and non-trivial phases depending on the relative strength of the Schrödinger and Dirac terms.
Majorana modes for a one-dimensional spin-orbit coupled Dirac system with extended $s$-wave superconductivity
We study a one-dimensional system of spin-orbit coupled Dirac electrons with $s$-wave superconducting pairing. Both lattice and continuum models are studied. In the lattice model, we find that zero
Transport on a topological insulator surface with a time-dependent magnetic barrier
We study transport across a time-dependent magnetic barrier present on the surface of a three-dimensional topological insulator. We show that such a barrier can be implemented for Dirac electrons on
A charged particle in perpendicular electric and magnetic fields
This section of Resonance presents thought-provoking questions, and discusses answers a few months later. Readers are invited to send new questions, solutions to old ones and comments, to ‘Think It
Driven Hubbard model on a triangular lattice: Tunable Heisenberg antiferromagnet with a chiral three-spin term
We study the effects of a periodically varying electric field on the Hubbard model at half-filling on a triangular lattice. The electric field is incorporated through the phase of the