Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18267
Title: Recovery in quantum error correction for general noise without measurement
Authors: Li, CK
Nakahara, M
Poon, YT
Sze, NS 
Tomita, H
Keywords: Higher rank numerical range
Mixed unitary channel
Operator quantum error correction
Quantum error correction
Issue Date: 2012
Publisher: Paramus
Source: Quantum information and computation, 2012, v. 12, no. 1-2, p. 149-158 How to cite?
Journal: Quantum Information and Computation 
Abstract: It is known that one can do quantum error correction without syndrome measurement, which is often done in operator quantum error correction (OQEC). However, the physical realization could be challenging, especially when the recovery process involves high-rank projection operators and a super operator. We use operator theory to improve OQEC so that the implementation can always be done by unitary gates followed by a partial trace operation. Examples are given to show that our error correction scheme outperforms the existing ones in various scenarios.
URI: http://hdl.handle.net/10397/18267
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