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An integrable Loren...
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Guica, MonicaUppsala universitet,Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,CEA Saclay, Inst Phys Theor, F-91191 Gif Sur Yvette, France.;Uppsala Univ, Dept Phys & Astron, SE-75108 Uppsala, Sweden.;Stockholm Univ, Nordita, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.,Nordiska institutet för teoretisk fysik (Nordita),Uppsala University, Sweden; Institut de Physique Théorique, France,Teoretisk fysik
(författare)
An integrable Lorentz-breaking deformation of two-dimensional CFTs
- Artikel/kapitelEngelska2018
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Stichting SciPost,2018
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LIBRIS-ID:oai:DiVA.org:kth-301924
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301924URI
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https://doi.org/10.21468/SciPostPhys.5.5.048DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-163717URI
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-371278URI
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Språk:engelska
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Sammanfattning på:engelska
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QC 20210924
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It has been recently shown that the deformation of an arbitrary two-dimensional conformal field theory by the composite irrelevant operator T (T) over bar, built from the components of the stress tensor, is solvable; in particular, the finite-size spectrum of the deformed theory can be obtained from that of the original CFT through a universal formula. We study a similarly universal, Lorentz-breaking deformation of two-dimensional CFTs that possess a conserved U (1) current, J. The deformation takes the schematic form J (T) over bar and is interesting because it preserves an SL (2, R)xU (1) subgroup of the original global conformal symmetries. For the case of a purely (anti) chiral current, we find the finite-size spectrum of the deformed theory and study its thermodynamic properties. We test our predictions in a simple example involving deformed free fermions.
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KTHNordic Institute for Theoretical Physics NORDITA
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Ingår i:SciPost Physics: Stichting SciPost5:52542-4653
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