Quantum teleportation via a two-qubit Heisenberg XXZ chain-effects of anisotropy and magnetic field

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.

References in corpus (8)

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• Entanglement and correlation in anisotropic quantum spin systems
• Entanglement in quantum computers described by the XXZ model with defects

Cited by in corpus (7)

• Entangled state teleportation through a couple of quantum channels composed of XXZ dimers in an Ising-XXZ diamond chain
• Thermal entanglement and teleportation in a dipolar interacting system
• Optimal teleportation via thermal entangled states of a two-qubit Heisenberg Chain
• Quantum coherence, quantum Fisher information and teleportation in the Ising-Heisenberg spin chain model of a heterotrimetallic Fe-Mn-Cu coordination polymer with magnetic impurity
• Teleportation of the one-qubit state in decoherence environments
• Robust quantum entanglement and teleportation in the tetrapartite spin-1/2 square clusters: Theoretical study on the effect of a cyclic four-spin exchange
• Anisotropy-assisted thermodynamic advantage of a local-spin thermal machine