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Decoherence of one-dimensional flying qubits due to their cross-talk and imperfections

D. V. Khveshchenko
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Abstract

We study decoherence of propagating spin-1/2 excitations in generic (non-integrable and/or disordered) spin chains. We find the relevant decoherence times to be shorter in both the near-critical and diffusive regimes (if any), which fact might have important implications for the recently proposed spin chain-based implementations of quantum information processing.

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D. V. Khveshchenko. 2003-11-19. Decoherence of one-dimensional flying qubits due to their cross-talk and imperfections. https://doi.org/10.1103/physrevb.70.092407

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