# Entanglement and quantum teleportation in a three-qubit Heisenberg chain with three-site interactions

Entanglement and quantum teleportation in a three-qubit Heisenberg chain with three-site... The thermal entanglement of a three-qubit XXZ Heisenberg model with three-site interactions in an external magnetic field, and the quantum teleportation via this model in thermal equilibrium state are investigated. It is found that entanglement and average fidelity depend on temperature, magnetic field, and anisotropy parameter $$J_Z$$ J Z . Only ferromagnetic system is suitable for quantum teleportation. $$\hbox {XZX}+\hbox {YZY}$$ XZX + YZY interaction is in favor of entanglement, average fidelity, and critical temperatures, while $$\text{ XZY }- \hbox {YZX}$$ XZY - YZX interaction against all of them. Moreover, we also find entanglement does not fully reflect average fidelity in virtue of study the relation between entanglement and average fidelity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

# Entanglement and quantum teleportation in a three-qubit Heisenberg chain with three-site interactions

, Volume 14 (7) – May 5, 2015
12 pages

/lp/springer_journal/entanglement-and-quantum-teleportation-in-a-three-qubit-heisenberg-lAz0K4U8IK
Publisher
Springer US
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-015-0998-9
Publisher site
See Article on Publisher Site

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