Entanglement entropy of two disjoint blocks in XY chains

Entanglement entropy of two disjoint blocks in XY chains

We study the Renyi entanglement entropies of two disjoint intervals in XY chains. We exploit the exact solution of the model in terms of free Majorana fermions and we show how to construct the reduced density matrix in the spin variables by taking properly into account the Jordan-Wigner string betwe...

Bibliografske podrobnosti
Main Authors:	Fagotti, M, Calabrese, P
Format:	Journal article
Jezik:	English
Izdano:	2010

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