Entanglement in a two-spin system with long-range interactions |
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| Authors: | Soltani M R Mahdavifar S Mahmoudi M |
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| Institution: | 1.Department of Physics, College of Science, Yadegar-e-Imam Khomeini(RAH) Shahre-Rey Branch, Islamic Azad University, Tehran, Iran;2.Department of Physics, University of Guilan, 41335-1914, Rasht, Iran |
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| 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. |
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| Keywords: | entanglement Ising model DM interaction negativity long range interaction |
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