Tunneling Qubit Operation on a Protected Josephson Junction Array

Details Tunneling Qubit Operation on a Protected Josephson Junction Array Tunneling Qubit Operation on a Protected Josephson Junction Array

2009-08-24

arxiv.org/abs/0908.3358v2

Physics

Quantum Physics

8 pages, 4 figures. The published version in Phys. Rev., A81(2010)012327

Scientific paper

We discuss a protected quantum computation process based on a hexagon Josephson junction array. Qubits are encoded in the punctured array, which is topologically protected. The degeneracy is related to the number of holes. The topological degeneracy is lightly shifted by tuning the flux through specific hexagons. We also show how to perform single qubit operation and basic quantum gate operations in this system.

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