Entanglement in a two-spin system with long-range interactions. (25th June 2016)

• Record Type: Journal Article
• Authors: Soltani, M R; Mahdavifar, S; Mahmoudi, M
• Is Part Of: Chinese physics B. Volume 25:Number 8(2016)
• Publication Date: 2016-06-25
• Subjects: 75.10.Jm -- 75.10.Pq; entanglement -- Ising model -- DM interaction -- negativity -- long range interaction; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1674-1056/25/8/087501
• Languages: English
• ISSNs: 1674-1056

Abstract

Abstract: The quantum entanglement between two spins in the Ising model with an added Dzyaloshinsky–Moriya (DM) interaction and in the presence of the transverse magnetic field is studied. The exchange interaction is considered as a function of the distance between spins. The negativity as a function of magnetic field, exchange and DM interaction is calculated. The effect of the distance between spins is studied based on the negativity. In addition, the effect of the thermal fluctuation on the negativity is also investigated.