Shell-filling effect in the entanglement entropies of spinful fermions.

We consider the von Neumann and Rényi entropies of the one-dimensional quarter-filled Hubbard model. We observe that for periodic boundary conditions the entropies exhibit an unexpected dependence on system size: for L=4 mod 8 the results are in agreement with expectations based on conformal field t...

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Detalhes bibliográficos
Principais autores: Essler, F, Läuchli, A, Calabrese, P
Formato: Journal article
Idioma:English
Publicado em: 2013