Error correction in ensemble registers for quantum repeaters and quantum computers

Details Error correction in ensemble registers for quantum repeaters and quantum computers Error correction in ensemble registers for quantum repeaters and quantum computers

2007-10-09

arxiv.org/abs/0710.1717v1

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.100.110506

We propose to use a collective excitation blockade mechanism to identify errors that occur due to disturbances of single atoms in ensemble quantum registers where qubits are stored in the collective population of different internal atomic states. A simple error correction procedure and a simple decoherence-free encoding of ensemble qubits in the hyperfine states of alkali atoms are presented.

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