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Bi-partite entanglement entropy in massive two-dimensional quantum field theory

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 نشر من قبل Benjamin Doyon
 تاريخ النشر 2008
  مجال البحث
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 تأليف Benjamin Doyon




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Recently, Cardy, Castro Alvaredo and the author obtained the first exponential correction to saturation of the bi-partite entanglement entropy at large region length, in massive two-dimensional integrable quantum field theory. It only depends on the particle content of the model, and not on the way particles scatter. Based on general analyticity arguments for form factors, we propose that this result is universal, and holds for any massive two-dimensional model (also out of integrability). We suggest a link of this result with counting pair creations far in the past.



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