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Entanglement constant for conformal families
KTH. Stockholm Univ, Sweden.
2015 (English)In: Physical Review D, ISSN 1550-7998, Vol. 92, no 6, 065010Article in journal (Refereed) Published
Abstract [en]

We show that in 1 + 1 dimensional conformal field theories, exciting a state with a local operator increases the Renyi entanglement entropies by a constant which is the same for every member of the conformal family. Hence, it is an intrinsic parameter that characterizes local operators from the perspective of quantum entanglement. In rational conformal field theories this constant corresponds to the logarithm of the quantum dimension of the primary operator. We provide several detailed examples for the second Renyi entropies and a general derivation.

Place, publisher, year, edition, pages
[Caputa, Pawel] KTH Royal Inst Technol, Nordita, SE-10691 Stockholm, Sweden. [Caputa, Pawel] Stockholm Univ, SE-10691 Stockholm, Sweden. [Veliz-Osorio, Alvaro] Univ Witwatersrand, Sch Phys, Mandelstam Inst Theoret Phys, ZA-2050 Johannesburg, South Africa., 2015. Vol. 92, no 6, 065010
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:kth:diva-174217DOI: 10.1103/PhysRevD.92.065010ISI: 000361120500006ScopusID: 2-s2.0-84943594904OAI: diva2:860024

QC 20151009

Available from: 2015-10-09 Created: 2015-10-02 Last updated: 2015-10-09Bibliographically approved

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