557 citations
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7 papers · 1 filter
Piecewise-terminated spherical topological insulator as a virtual breadboard for Majorana circuitry
Adam C. Durst, Sriram Ganeshan
We consider the surface states of a spherical topological insulator piecewise-terminated by superconductivity or ferromagnetism over various regions of the spherical surface. Such…
Disorder-induced density of states on the surface of a spherical topological insulator
Adam C. Durst
We consider a topological insulator (TI) of spherical geometry and numerically investigate the influence of disorder on the density of surface states. To the clean Hamiltonian we a…
Full counting statistics in a disordered free fermion system
G. C. Levine, M. J. Bantegui, J. A. Burg
The Full Counting Statistics (FCS) is studied for a one-dimensional system of non-interacting fermions with and without disorder. For two unbiased site lattices connected at ti…
Topological entanglement entropy in the second Landau level
B. A. Friedman, G. C. Levine
The entanglement entropy of the incompressible states of a realistic quantum Hall system in the second Landau level are studied by direct diagonalization. The subdominant term to t…
Topological entropy of realistic quantum Hall wave functions
B. A. Friedman, G. C. Levine
The entanglement entropy of the incompressible states of a realistic quantum Hall system are studied by direct diagonalization. The subdominant term to the area law, the topologica…
Entanglement of a qubit with a single oscillator mode
G. C. Levine, V. N. Muthukumar
We solve a model of a qubit strongly coupled to a massive environmental oscillator mode where the qubit backaction is treated exactly. Using a Ginzburg-Landau formalism, we derive…