1. Experimental Repetitive Quantum Error Correction.
- Author
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Schindler, Philipp, Barreiro, Julio T., Monz, Thomas, Nebendahl, Volckmar, Nigg, Daniel, Chwalla, Michael, Hennrich, Markus, and Blatt, Rainer
- Subjects
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PHYSICS research , *PHYSICS experiments , *QUANTUM computers , *ELECTROMAGNETIC noise , *MATHEMATICAL physics , *ERROR functions - Abstract
The computational potential of a quantum processor can only be unleashed if errors during a quantum computation can be controlled and corrected for. Quantum error correction works if imperfections of quantum gate operations and measurements are below a certain threshold and corrections can be applied repeatedly. We implement multiple quantum error correction cycles for phase-flip errors on qubits encoded with trapped ions. Errors are corrected by a quantum-feedback algorithm using high-fidelity gate operations and a reset technique for the auxiliary qubits. Up to three consecutive correction cycles are realized, and the behavior of the algorithm for different noise environments is analyzed. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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