Dynamics of quantum entanglement in three-spin system with cluster interaction

محورهای موضوعی : Journal of Theoretical and Applied Physics

Zahra Noorinejad ¹ , Mohammadreza Abolhassani ² , Saeed Mahdavifar ³ , Mansoure Ilkhani ⁴

1 - Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 - Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran
3 - Department of Physics, University of Guilan
4 - Department of Physics, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran

تاریخ دریافت : 1401/03/29 تاریخ پذیرش : 1401/04/21 تاریخ انتشار : 1401/06/10

کلید واژه: quantum entanglement, concurrence, three-spin interaction, cluster interaction, critical point,

چکیده مقاله :

The present paper investigates the spin- XX model with three-spin interaction (TSI) from a view point of bipartite entanglement. The three-spin system is initially chosen by well-known W entangled state. By analyzing the time-dependency of the concurrence between the nearest and the next-nearest neighbor pair of spins, we show that where the quantum phase transition (QPT) of the infinite-size system might happen can be observed, even from short-time dynamics of such a finite spin system.