A Scheme for protecting one-qubit information against erasure error
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We propose a scheme for protecting one-qubit information against one erasure.. The scheme operates essentially by distributing quantum information over four qubits. Two versions of the method are considered: one of them is based on two spatially separated pairs of qubits, and the other is based on one pair of qubits and two spatially separated qubits.
Yang, CP; Chu, SI; Han, S. A Scheme for protecting one-qubit information against erasure error. JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS. Oct 2002. 4(5):256-259
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