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quant-ph2023★ 1 cited
Global quantum discord and von Neumann entropy in multipartite two-level atomic systems
M. Ibrahim, M. Usman, Khalid Khan
We have computed the global quantum discord and von Neumann entropy of multipartite two-level atomic systems interacting with a single-mode Fock field. We use Tavis-Cumming model.…
quant-ph2016
Spatial dependence of entanglement renormalization in model
M. Usman, Asif Ilyas, Khalid Khan
In this article a comparative study of the renormalization of entanglement in one, two and three dimensional space and its relation with quantum phase transition (QPT) near the cri…