Decoherence of one-dimensional flying qubits due to their cross-talk and imperfections
arXiv:cond-mat/0311426 · doi:10.1103/PhysRevB.70.092407
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.
Latex, 5 pages, no figures
References in corpus (9)
- Entanglement in quantum critical phenomena
- Quantum Communication Through an Unmodulated Spin Chain
- Quantum Computing with an 'Always On' Heisenberg Interaction
- Entanglement versus chaos in disordered spin chains
- Quantum computation with un-tunable couplings
- Dynamical structure factor of the anisotropic Heisenberg chain in a transverse field
- Quantum Entanglement in Heisenberg Antiferromagnets
- Two-particle localization and antiresonance in disordered spin and qubit chains
- Antiresonance and interaction-induced localization in spin and qubit chains with defects