Topologically protected charge transfer along the edge of a chiral p-wave superconductor
N. V. Gnezdilov, B. van Heck, M. Diez, Jimmy A. Hutasoit, C. W. J. Beenakker
DOI 10.1103/PhysRevB.92.121406 · Physical Review B
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Abstract
The Majorana fermions propagating along the edge of a topological superconductor with px+ipy pairing deliver a shot noise power of 12×e2/h per eV of voltage bias. We calculate the full counting statistics of the transferred charge and find that it becomes trinomial in the low-temperature limit, distinct from the binomial statistics of charge-e transfer in a single-mode nanowire or charge-2e transfer through a normal-superconductor interface. All even-order correlators of current fluctuations have a universal quantized value, insensitive to disorder and decoherence. These electrical signatures are experimentally accessible, because they persist for temperatures and voltages large compared to the Thouless energy.
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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