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Teleportation-induced entanglement of two nanomechanical oscillators coupled to a topological superconductor
Stefan Walter, Jan Carl Budich
A one-dimensional topological superconductor features a single fermionic zero mode that is delocalized over two Majorana bound states located at the ends of the system. We study a…
Time Reversal Symmetric Topological Exciton Condensate in Bilayer HgTe Quantum Wells
Jan Carl Budich, Björn Trauzettel, Paolo Michetti
We investigate a bilayer system of critical HgTe quantum wells each featuring a spin-degenerate pair of massless Dirac fermions. In the presence of an electrostatic inter-layer Cou…
Topological invariant for generic 1D time reversal symmetric superconductors in class DIII
Jan Carl Budich, Eddy Ardonne
A one dimensional time reversal symmetric topological superconductor (symmetry class DIII) features a single Kramers pair of Majorana bound states at each of its ends. These hologr…
Equivalent topological invariants for one-dimensional Majorana wires in symmetry class D
Jan Carl Budich, Eddy Ardonne
Topological superconductors in one spatial dimension exhibiting a single Majorana bound state at each end are distinguished from trivial gapped systems by a Z_2 topological invaria…
Group theoretical and topological analysis of the quantum spin Hall effect in silicene
Florian Geissler, Jan Carl Budich, Björn Trauzettel
Silicene consists of a monolayer of silicon atoms in a buckled honeycomb structure. It was recently discovered that the symmetry of such a system allows for interesting Rashba spin…
Unraveling of the fractional topological phase in one-dimensional flatbands with nontrivial topology
Jan Carl Budich, Eddy Ardonne
We consider a topologically non-trivial flat band structure in one spatial dimension in the presence of nearest and next nearest neighbor Hubbard interaction. The non-interacting b…