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

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

2003-11-19

arxiv.org/abs/cond-mat/0311426v1

Phys. Rev. B 70, 092407 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

Latex, 5 pages, no figures

Scientific paper

10.1103/PhysRevB.70.092407

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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