Detecting Majorana bound states

Details Detecting Majorana bound states Detecting Majorana bound states

2009-08-05

arxiv.org/abs/0908.0655v3

Phys. Rev. B 81, 085101 (2010).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 6 figures, 1 table, revised and expanded, accepted for publication in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.81.085101

We propose a set of interferometric methods on how to detect Majorana bound states induced by a topological insulator. The existence of these states can be easily determined by the conductance oscillations as function of magnetic flux and/or electric voltage. We study the system in the presence and absence of Majorana bound states and observe strikingly different behaviors. Importantly, we show that the presence of coupled Majorana bound states can induce a persistent current in absence of any external magnetic field.

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