Quantum communication beyond the localization length in disordered spin chains.
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.
Allcock
Jonathan
J
Department of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, United Kingdom. jon.allcock@bristol.ac.uk
Linden
Noah
N