Approximation of the entanglement in quantum dot chains using Hubbard models

J. P. Coe, V. V. França, I. D'Amico

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We investigate the Hubbard model, and the extended Hubbard model with and without correlated hopping, as an approximation to the average single-site (or local) entanglement of two-electron one-dimensional quantum dot chains with long range interactions. We focus on the effect of the chain length on the approximation accuracy. We also consider the particle-particle spatial entanglement of the three Hubbard models using the technique of Ref. [3] and compare the accuracy of this approximation to the numerically exact results of the nanostructure system.
Original languageEnglish
Article number012048
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - Apr 2011


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