Experimentally feasible quantum erasure-correcting code for continuous variables

Details Experimentally feasible quantum erasure-correcting code for continuous variables Experimentally feasible quantum erasure-correcting code for continuous variables

2007-10-25

arxiv.org/abs/0710.4858v1

Phys. Rev. Lett. 101, 130503 (2008)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevLett.101.130503

We devise a scheme that protects quantum coherent states of light from probabilistic losses, thus achieving the first continuous-variable quantum erasure-correcting code. If the occurrence of erasures can be probed, then the decoder enables, in principle, a perfect recovery of the original light states. Otherwise, if supplemented with postselection based on homodyne detection, this code can be turned into an efficient erasure-filtration scheme. The experimental feasibility of the proposed protocol is carefully addressed.

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