Abstract.
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.
Similar content being viewed by others
References
C.H. Bennett et al., Phys. Rev. Lett. 70, 1895 (1993)
Y. Yeo, Phys. Rev. A 66, 062312 (2002)
Y. Yeo et al., J. Phys. A 38, 3235 (2005)
G.-F. Zhang, Phys. Rev. A 75, 034304 (2007)
U. Glaser, H. Büttner, H. Fehske, Phys. Rev. A 68, 032318 (2003)
P.M. Platzman, M.I. Dykman, Science 284, 1967 (1999)
L.F. Santos, Phys. Rev. A 67, 062306 (2003)
G.-F. Zhang, S.-S. Li, Phys. Rev. A 72, 034302 (2005)
G. Bowen, S. Bose, Phys. Rev. Lett. 87, 267901 (2001)
S. Hill, W.K. Wootters, Phys. Rev. Lett. 78, 5022 (1997)
J. Lee, M.S. Kim, Phys. Rev. Lett. 84, 4236 (2000)
R. Jozsa, J. Mod. Opt. 41, 2315 (1994)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhou, Y., Zhang, GF. Quantum teleportation via a two-qubit Heisenberg XXZ chain – effects of anisotropy and magnetic field. Eur. Phys. J. D 47, 227–231 (2008). https://doi.org/10.1140/epjd/e2008-00023-5
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epjd/e2008-00023-5