Genuine-multipartite-entanglement trends in gapless-to-gapped transitions of quantum spin systems

A Biswas, R Prabhu, A Sen, U Sen - Physical Review A, 2014 - APS
We investigate the behavior of genuine multiparticle entanglement, as quantified by the
generalized geometric measure, in gapless-to-gapped quantum transitions of one-and two …

Entanglement signatures for the dimerization transition in the Majumdar-Ghosh model

MS Ramkarthik, VR Chandra, A Lakshminarayan - Physical Review A—Atomic …, 2013 - APS
The transition from a gapless liquid to a gapped dimerized ground state that occurs in the
frustrated antiferromagnetic Majumdar-Ghosh (or J 1− J 2 Heisenberg) model is revisited …

Entanglement in a four qubit J1–J2 Heisenberg XXZ system with Dzialoshinskii–Moriya interaction

A Şahintaş, C Akyüz - Physica A: Statistical Mechanics and its Applications, 2016 - Elsevier
In this study, we investigate the entanglement properties of a four qubit anisotropic
Heisenberg XXZ system which has the nearest neighboring (NN), the next nearest …

Entanglement distribution in a two-dimensional 5-site frustrated spin system: Separable and globally entangled ground states

M Jafarpour, S Ghanavati, D Afshar - International Journal of …, 2015 - World Scientific
We have studied several ground states and their entanglement structure for a two-
dimensional 5-site frustrated J 1–J 2 system in the presence and absence of an external …

[HTML][HTML] 具有次**邻相互作用的五量子比特 XXZ 海森伯自旋链的热纠缠

刘贵艳, 毛竹, 周斌 - 物理学报, 2018 - cpsjournals.cn
研究具有次**邻相互作用五量子比特XXZ 海森伯自旋链在磁场作用下的热纠缠性质,
利用数值计算求出最**邻两量子比特和次**邻两量子比特的共生纠缠度(concurrence) …