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arXiv · 0807.3616

Protecting Quantum Information with Entanglement and Noisy Optical Modes

Mark M. Wilde·Todd A. Brun
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Abstract

We incorporate active and passive quantum error-correcting techniques to protect a set of optical information modes of a continuous-variable quantum information system. Our method uses ancilla modes, entangled modes, and gauge modes (modes in a mixed state) to help correct errors on a set of information modes. A linear-optical encoding circuit consisting of offline squeezers, passive optical devices, feedforward control, conditional modulation, and homodyne measurements performs the encoding. The result is that we extend the entanglement-assisted operator stabilizer formalism for discrete variables to continuous-variable quantum information processing.

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Mark M. Wilde, Todd A. Brun. 2008-07-23. Protecting Quantum Information with Entanglement and Noisy Optical Modes. https://doi.org/10.1007/s11128-009-0117-x

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