English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The local entanglement $E_v$ of the one-dimensional Hubbard model is studiedon the basis of its Bethe-ansatz solution. The relationship between the localentanglement and the on-site Coulomb interaction $U$ is obtained. Our resultsshow that $E_v$ is an even analytic function of $U$ at half-filling and itreaches a maximum at the critical point U=0. The variation of the localentanglement with the filling factor shows that the ground state with maximalsymmetry possesses maximal entanglement. The magnetic field makes the localentanglement to decrease and approach to zero at saturated magnetization. Theon-site Coulomb interaction always suppresses the local entanglement.Comment: 5 pages, 3 figure

Entanglement and Quantum Phase Transition in the Extended Hubbard Model