محمد رضا سلطانی - Department of Physics, College of Science, Yadegar-e-Imam Khomeini (RAH) Shahre-Rey Branch, Islamic Azad University, Tehran, Iran
سعید مهدوی فر - Department of Physics, University of Guilan, ۴۱۳۳۵-۱۹۱۴, Rasht, Iran
مریم محمودی - Department of Physics, University of Guilan, ۴۱۳۳۵-۱۹۱۴, Rasht, Iran
آرزو جهانشیر - Department of Physics and Engineering Sciences, Imam Khomeini International University, Buein Zahra Higher Education Centre of Engineering and Technology, Iran

Introduction: In this study, we investigate the dynamics of the Entanglement in a two-spin system with long-range interaction. Method: For this purpose, we use negativity as the entanglement measurement. Using the time evolution operator, we obtain entanglement dynamics of the system at time t. We consider two different initial states and investigate the dynamical behavior of the system for all of them separately. Finally, we consider both J and D as a function of R and then study the time evolution of the entanglement in different R. Results: We find that in the long-range interaction, the R dependence of the dynamical behavior in the two systems is different. Depending on the initial states, the DM interaction and the magnetic field have no effect on the entanglement dynamics.

Entanglement dynamics, long range, negativity, Dzyaloshinskii-Moriya interaction, Magnetic field