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

A. Miranowicz·S. K. Ozdemir·M. Koashi·N. Imoto·Y. Hirayama
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Abstract

Time 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.

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A. Miranowicz, S. K. Ozdemir, M. Koashi, N. Imoto, Y. Hirayama. 2001-09-27. Maximum entanglement of quantum-dot systems with single excitation in the spin van der Waals model. https://arxiv.org/abs/quant-ph/0109144

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