2008/02/19 by Yue Zhou, Y. Zhou, Guofeng Zhang +1
Computer Science · Physics and Astronomy · #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum many-body systems #quant-ph
paper · pdf · doi:10.1140/epjd/e2008-00023-5
published as Eur.Phys.J.D 47,227-231(2008)
openalex publication_date 2008/02/19 · arxiv created 2008/08/18 · arxiv updated 2009/12/01 · openalex created_date 2017/10/20 · openalex updated_date 2026/07/28
We study quantum teleportation via a two-qubit Heisenberg XXZ chain under an inhomogeneous magnetic field. We first consider entanglement teleportation, and then focus on the teleportation fidelity under different conditions. The effects of anisotropy and the magnetic field, both uniform and inhomogeneous, are discussed. We also find that, though entanglement teleportation does require an entangled quantum channel, a nonzero critical value of minimum entanglement is not always necessary.