Entanglement entropy of excited states

We study the entanglement entropy of a block of contiguous spins in excited states of spin chains. We consider the XY model in a transverse field and the XXZ Heisenberg spin-chain. For the latter, we developed a numerical application of algebraic Bethe Ansatz. We find two main classes of states with...

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Autors principals: Alba, V, Fagotti, M, Calabrese, P
Format: Journal article
Idioma:English
Publicat: 2009