Isaac Newton Institute for Mathematical Sciences

Quantum communication beyond the localization length in disordered spin chains

Authors: Jonathan Allcock (University of Bristol), Noah Linden (University of Bristol)

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.

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