Dynamics of the entanglement in a two- spin system with long- range interaction
سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 220
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شناسه ملی سند علمی:
JR_JITF-4-1_002
تاریخ نمایه سازی: 24 آبان 1400
چکیده مقاله:
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.
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نویسندگان
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