• 文献标题:   Entanglement teleportation via thermal Wannier edge states in a chiral graphene nanoribbon
  • 文献类型:   Article
  • 作  者:   TAN XD, LIAO XP, SUN LT
  • 作者关键词:   entanglement teleportation, wannier edge state, chiral graphene nanoribbon, fidelity
  • 出版物名称:   QUANTUM INFORMATION PROCESSING
  • ISSN:   1570-0755 EI 1573-1332
  • 通讯作者地址:   Southeast Univ
  • 被引频次:   1
  • DOI:   10.1007/s11128-017-1563-5
  • 出版年:   2017

▎ 摘  要

We investigate the entanglement teleportation via thermal Wannier edge states in a chiral graphene nanoribbon described by the effective Heisenberg model. The results show that in order to realize quantum teleportation the channel entanglement must be larger than a critical minimum value which depends on the entanglement of the initial input state. We also show that the teleportation fidelity is approximately close to the maximum at lower temperature. In particular, if Coulomb repulsion among electrons is smaller than 1.2 eV, the average fidelity will be larger than 2/3 even at room temperature.