Splitting of Majorana-Fermion Modes due to Intervortex Tunneling in a px+ipy Superconductor
Meng Cheng, Roman M. Lutchyn, Victor Galitski, S. Das Sarma
DOI 10.1103/PhysRevLett.103.107001 · Physical Review Letters
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Abstract
We consider a two-dimensional (px+ipy) superconductor in the presence of multiple vortices, which support zero-energy Majorana-fermion states in their cores. Intervortex tunnelings of the Majorana fermions lift the topological state degeneracy. Using the Bogoliubov–de Gennes equation, we calculate splitting of the zero-energy modes due to these tunneling events. We also discuss superconducting fluctuations and, in particular, their effect on the energy splitting.
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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