Quantum computation and quantum information
Quantum computation and quantum information
Quantum Computing
Quantum Error Correction and Fault Tolerant Quantum Computing
Quantum Error Correction and Fault Tolerant Quantum Computing
Quantum Computer Science: An Introduction
Quantum Computer Science: An Introduction
Operator quantum error correction
Quantum Information & Computation
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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 superoperator. 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.