High-Probability Quantum State Transfer in the Alternating Open Chains of 1/2 Spins with XY Hamiltonian

Abstract

This paper concerns the problem of non-ideal state transfer along the alternating open chain of spins $s=1/2$ with XY Hamiltonian. It is found that the state transfer along the chain with even number of spins $N$ ($N=4,6,8$) may be realized with high probability. Privilege of even $N$ in comparison with odd $N$ is demonstrated.

14 pages, 6 figures

References in corpus (4)

• Quantum Communication Through an Unmodulated Spin Chain
• Perfect state transfer in quantum spin networks
• Long-distance entanglement and quantum teleportation in XX spin chains
• Exact results on spin dynamics and multiple quantum dynamics in alternating spin-1/2 chains with XY-Hamiltonian at high temperatures

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• Remote creation of a one-qubit mixed state through a short homogeneous spin-1/2 chain
• Relationship between probabilities of the state transfers and entanglements in spin systems with simple geometrical configurations
• Temperature-dependent remote control of polarization and coherence intensity with pure sender's initial state
• Super-quantum discord in ferromagnetic and antiferromagnetic materials
• Remote control of quantum correlations in two-qubit receiver via three-qubit sender