Five-wave-packet quantum error correction based on continuous-variable cluster entanglement.

ABSTRACT: Quantum error correction protects the quantum state against noise and decoherence in quantum communication and quantum computation, which enables one to perform fault-torrent quantum information processing. We experimentally demonstrate a quantum error correction scheme with a five-wave-packet code against a single stochastic error, the original theoretical model of which was firstly proposed by S. L. Braunstein and T. A. Walker. Five submodes of a continuous variable cluster entangled state of light are used for five encoding channels. Especially, in our encoding scheme the information of the input state is only distributed on three of the five channels and thus any error appearing in the remained two channels never affects the output state, i.e. the output quantum state is immune from th

SUBMITTER: Hao S 

PROVIDER: S-EPMC4620507 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature