Maximum entanglement of quantum-dot systems with single excitation in the spin van der Waals model

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89725Time evolution of entanglement of N quantum dots is analyzed within the spin-1/2 van der Waals (or Lipkin-Meshkov-Glick) XY model. It is shown that, for a single dot initially excited and disentangled from the remaining unexcited dots, the maximum bipartite entanglement can be obtained in the systems of N=2,...,6 dots only.2 pages, 3 figuresQuantum PhysicsMaximum entanglement of quantum-dot systems with single excitation in the spin van der Waals modeltext