Quantum communication beyond the localization length in disordered spin chains
arXiv:0801.4867 · doi:10.1103/PhysRevLett.102.110501
Abstract
We study the effects of localization on quantum state transfer in spin chains. We show how to use quantum error correction and multiple parallel spin chains to send a qubit with high fidelity over arbitrary distances; in particular distances much greater than the localization length of the chain.
5 pages, 2 figures