Form factors of branch-point twist fields in quantum integrable models and entanglement entropy

In this paper we compute the leading correction to the bipartite entanglement entropy at large sub-system size, in integrable quantum field theories with diagonal scattering matrices. We find a remarkably universal result, depending only on the particle spectrum of the theory and not on the details...

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Bibliographic Details
Main Authors: Cardy, J, Castro-Alvaredo, O, Doyon, B
Format: Journal article
Language:English
Published: 2008