Statistics of a quantum-state-transfer Hamiltonian in the presence of disorder
arXiv:1303.7063 · doi:10.1103/PhysRevA.87.042311
Abstract
We present a statistical analysis on the performance of a protocol for the faithful transfer of a quantum state in finite qubit or spin chains, in the presence of diagonal and off-diagonal disorder. It is shown that the average-state fidelity, typically employed in the literature for the quantification of the transfer, may overestimate considerably the performance of the protocol in a single realization, leading to faulty conclusions about the success of the transfer.
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- Almost perfect transmission of multipartite entanglement through disordered and noisy spin chains
- Photon-assisted quantum state transfer and entanglement generation in spin chains
- Evaluation of the performance of two state-transfer Hamiltonians in the presence of static disorder
- Robust and efficient transport of two-qubit entanglement via disordered spin chains
- Quantum recurrence and fractional dynamic localization in ac-driven perfect state transfer Hamiltonians