Approximation of the entanglement in quantum dot chains using Hubbard models

J P Coe, V V França, I D'Amico

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2 Citations (Scopus)

Abstract

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
Volume286
Issue number1
DOIs
Publication statusPublished - Apr 2011

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