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The Peierls distorted chain as a quantum data bus for quantum state transfer

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Published 17 October 2008 Europhysics Letters Association
, , Citation M. X. Huo et al 2008 EPL 84 30004 DOI 10.1209/0295-5075/84/30004

0295-5075/84/3/30004

Abstract

We study the quantum state transfer (QST) of an electron spin along the half-filled Peierls distorted chain (PDC). As has been proved, this solvable and feasible gapped model can accomplish a high-fidelity and long-distance QST. Moreover, numerical simulations are performed in and near the non-distortion point which is beyond the range of perturbation. The result shows that the efficiency of the QST is sensitive to the uniform-to-distorted transition of the PDC, which is related to the transition between the conductor and the insulator. Then this scheme can also be employed to probe the conductor-to-insulator transition of the PDC.

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10.1209/0295-5075/84/30004