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Quantum communication through chains with diluted disorder
Authors:P.R.S. Júnior  G.M.A. Almeida  M.L. Lyra  F.A.B.F. de Moura
Affiliation:Instituto de Física, Universidade Federal de Alagoas, Maceió, AL 57072-970, Brazil
Abstract:
We investigate a single-qubit state transfer protocol along a channel featuring diagonal diluted disorder. In the regime where the source and destination sites are weakly coupled to the channel, we report the possibility of transmitting quantum states with high fidelity as well as establishing end-to-end entanglement in that sort of configuration. We further discuss how the performance of the protocol depends upon the availability of extended states within the disordered channel.
Keywords:Quantum-state transfer  Anderson localization  Quantum communication
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