2003/11/19 by D. V. Khveshchenko · 1 citation
Computer Science · Physics and Astronomy · #Quantum Computing Algorithms and Architecture #Quantum and electron transport phenomena #Quantum many-body systems #cond-mat.str-el #quant-ph
paper · pdf · doi:10.1103/physrevb.70.092407
published as Phys. Rev. B 70, 092407 (2004) · Latex, 5 pages, no figures
arxiv created 2003/11/19 · openalex publication_date 2004/09/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study decoherence of propagating spin-1∕2 excitations in generic (nonintegrable and∕or disordered) spin chains. We find that the corresponding decoherence times become shorter in both the near-critical and diffusive regimes, a fact which has important implications for the recently proposed spin chain-based implementations of quantum information processing where such excitations can be utilized in the capacity of ``all-spin'' flying qubits.