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An integrable Lorentz-breaking deformation of two-dimensional CFTs
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- Guica, Monica (author)
- Uppsala 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
- (creator_code:org_t)
- Stichting SciPost, 2018
- 2018
- English.
- In: SciPost Physics. - : Stichting SciPost. - 2542-4653. ; 5:5
- Journal article (peer-reviewed)
Abstract
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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.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
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