Protecting three-qubit quantum information against erasures through an efficient quantum error correction code
Chui‐Ping Yang, Shih‐I Chu, Siyuan Han · arXiv (Cornell University) · 2001
We present a quantum error correction code which protects three quantum bits (qubits) of quantum information against one erasure, i.e., a single-qubit arbitrary error at a known position. To accomplish this, we encode the original state by distributing quantum information over six qubits. The encoding and error recovery operations for such a code are presented. We also show that the present code is a three-qubit quantum hidded information code over each qubit. In addition, hiding $n$-qubit quantum information over each qubit is considered.