Tunable Majorana fermion from Landau quantization in 2D topological superconductors
R. S. Akzyanov, A. L. Rakhmanov, A. V. Rozhkov, Franco Nori
DOI 10.1103/PhysRevB.94.125428 · Physical Review B
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Abstract
We study Majorana fermions in a two-dimensional topological superconductor placed in a transverse magnetic-field B. We consider a topological insulator/superconductor heterostructure and a two-dimensional p-wave superconductor. A single field-generated vortex creates two Majorana fermions, one of which is hosted at the vortex core. The wave function of the second Majorana state is localized in the superconductor volume along a circle with a radius of r*∝B−1 centered at the vortex core. In the case of many vortices, the sensitivity of r* to the magnetic field B may be used to control the coupling between the Majorana fermions. The latter property could be an asset for quantum computations.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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