Quantum correlations in Ising-XYZ diamond chain structure under an external magnetic field

TL;DR

This paper investigates quantum correlations in an entangled Ising-XYZ diamond chain under magnetic fields, revealing how anisotropy, temperature, and magnetic field influence quantum discord and trace distance discord.

Contribution

It introduces a detailed analysis of quantum discord and trace distance discord in an Ising-XYZ diamond chain, highlighting novel effects of temperature and anisotropy on quantum correlations.

Findings

Trace distance discord exceeds quantum discord in all cases.

Quantum correlations can increase with temperature.

Anisotropy parameter plays a constructive role in quantum correlations.

Abstract

In this paper, we consider an entangled Ising-XYZ diamond chain structure. Quantum correlations for this model is investigated by using of quantum discord and trace distance discord. Quantum correlations is obtained for different values of the anisotropy parameter, magnetic field and temperature. By comparison between quantum correlations, we show trace distance discord is always larger than quantum discord. Finally, some novel effects, such as increasing the quantum correlations with temperature and constructive role of anisotropy parameter which may paly to the quantum correlations were observed.