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Condensed Matter > Statistical Mechanics

Title: Thermal entanglement in the mixed-spin Ising-Heisenberg double sawtooth frustrated ladder

Abstract: The entanglement between spin-1/2 interstitial Heisenberg dimers in the mixed spin-(1,1/2) Ising-XXZ double sawtooth ladder is investigated at low temperature. Here, we consider a cyclic four-spin exchange interaction in square plaquette of each block, and investigate the effects of this amazing interaction on the bipartite entanglement between spin-1/2 interstitial dimers. Interestingly, we observe a remarkable difference in concurrence behavior with respect to the cyclic four-spin exchange interaction and magnetic field. Also, the critical points at which the concurrence vanishes are changed versus alteration of the anisotropic parameter of the interstitial Heisenberg dimers.
Comments: Submitted to Solid State communications, 13 pages, 6 figures
Subjects: Statistical Mechanics (cond-mat.stat-mech)
Cite as: arXiv:1803.06424 [cond-mat.stat-mech]
  (or arXiv:1803.06424v1 [cond-mat.stat-mech] for this version)

Submission history

From: Hamid Arian Zad [view email]
[v1] Fri, 16 Mar 2018 23:00:52 GMT (320kb,D)