Experimental Implementation of a Concatenated Quantum Error-Correcting Code

Details Experimental Implementation of a Concatenated Quantum Error-Correcting Code Experimental Implementation of a Concatenated Quantum Error-Correcting Code

2004-09-27

arxiv.org/abs/quant-ph/0409193v1

Physics

Quantum Physics

4 pages, 2 encapsulated eps figures. REVTeX4 style

Scientific paper

10.1103/PhysRevLett.94.130501

Concatenated coding provides a general strategy to achieve the desired level of noise protection in quantum information storage and transmission. We report the implementation of a concatenated quantum error-correcting code able to correct against phase errors with a strong correlated component. The experiment was performed using liquid-state nuclear magnetic resonance techniques on a four spin subsystem of labeled crotonic acid. Our results show that concatenation between active and passive quantum error-correcting codes offers a practical tool to handle realistic noise contributed by both independent and correlated errors.

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