# Unpaired Majorana fermions in quantum wires

@article{Kitaev2000UnpairedMF, title={Unpaired Majorana fermions in quantum wires}, author={Alexei Y. Kitaev}, journal={Physics-Uspekhi}, year={2000}, volume={44}, pages={131-136} }

Certain one-dimensional Fermi systems have an energy gap in the bulk spectrum while boundary states are described by one Majorana operator per boundary point. A finite system of length L possesses two ground states with an energy difference proportional to exp(-L/l0) and different fermionic parities. Such systems can be used as qubits since they are intrinsically immune to decoherence. The property of a system to have boundary Majorana fermions is expressed as a condition on the bulk electron…

## 2,335 Citations

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The appearance of Majorana fermions in one dimensional p-wave superconductors was first predicted by A. Kitaev in his well known paper [Kitaev, 2000]. One expected signature of such zero-energy…

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Yakovenko for interesting discussions

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