Classical correlation and quantum entanglement in the mixed-spin Ising-XY model with Dzyaloshinskii-Moriya interaction

TL;DR

This paper investigates quantum entanglement and classical correlations in a mixed-spin Ising-XY model with Dzyaloshinskii-Moriya interaction, analyzing their dependence on temperature, magnetic field, and anisotropy, and explores its potential as a quantum communication channel.

Contribution

It introduces a novel mixed-spin chain model with DM interaction and analyzes its correlation properties and information transmission capabilities.

Findings

Quantum entanglement varies with temperature and magnetic field.

Dzyaloshinskii-Moriya interaction influences correlation strength.

The model can serve as an effective quantum communication channel.

Abstract

In the present work, initially a mixed-three-spin (1/2,1,1/2) cell of a mixed-N-spin chain with Ising-XY model is introduced, for which pair spins (1,1/2) have Ising-type interaction and pair spins (1/2,1/2) have both XY-type and Dzyaloshinskii-Moriya(DM) interactions together. An external homogeneous magnetic field B is considered for the system in thermal equilibrium. Integer-spins have a single-ion anisotropy property with coefficient {\zeta}. Then, we investigate the quantum entanglement between half-spins (1/2,1/2), by means of the concurrence. Classical correlation(CC) for this pair of spins is investigated as well as the concurrence and some interesting the temperature, the magnetic field and the DM interaction properties are expressed. Moreover, single-ion anisotropy effects on the correlation between half-spins is verified. According to the verifications based on the communication channels category by D. Rossini, V. Giovannetti and R. Fazio 63, we theoretically consider such tripartite spin model as an ideal quantum channel, then calculate its information transmission rate and express some differences in behaviour between this suggested model and introduced simple models in the previous works(chains without spin integer and DM interaction) from information transferring protocol point of view.