• 文献标题:   Quantum teleportation and thermal entanglement of two-scattering qubit state in graphene lattices
  • 文献类型:   Article
  • 作  者:   MHAMDI H, JEBLI L, HABIBALLAH N, NASSIK M
  • 作者关键词:   graphene lattice, elastic scattering proces, quantum entanglement, quantum teleportation, average fidelity of teleportation, concurrence entanglement of formation
  • 出版物名称:   MODERN PHYSICS LETTERS A
  • ISSN:   0217-7323 EI 1793-6632
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1142/S0217732322501504 EA SEP 2022
  • 出版年:   2022

▎ 摘  要

This paper presents an analytical investigation of the teleportation and the thermal entanglement of two identical qubits in the ground state of graphene lattices. The elastic interaction between the two qubits is considered as a scattering process. The modified Hamiltonian and density matrix of the system were presented. The teleportation and the entanglement of two-qubit system are analyzed through the study of the average fidelity of teleportation F-A, the concurrence C and the entanglement. of formation epsilon(f). The results depend on the temperature T and also on the parameters of the system as the chi parameter of the interaction potential and gamma band parameter. The study shows that the teleportation and the entanglement decrease when the temperature T increases but they become all the more important as the parameters chi and gamma increase.