Entanglement of thermal state of quantum annealing processor

• Main Authors: Abdel-Aty Abdel-Haleem, Khedr Ahmad N., Youssef Amr A., Saddeek Yasser B.
• Format: Article
• Language: English
• Published: VINCA Institute of Nuclear Sciences 2020-01-01
• Series: Thermal Science
• Subjects: concurrence; thermal state; spin-orbit coupling; coupling constant; spin-chain model
• Online Access: http://www.doiserbia.nb.rs/img/doi/0354-9836/2020/0354-983620325A .pdf
• ISSN: 0354-9836; 2334-7163

We investigate the dynamics of quantum correlations between the quantum annealing processor nodes. The quantum annealing processor is simulated by spin-chain model. It is assumed that system started from the thermal state. The Hamiltonian of the system is mathematically designed and analytically solved. The properties of the system are investigated. Negativity is used to investigate the dynamics of quantum correlation between the system nodes. The effect of the system parameters (spin-orbit coupling, coupling constant, and bias parameter) on the dynamics of negativity is explored. Results showed that the coupling constant had a great effect in the dynamics of the quantum correlation.