Journal
SCIPOST PHYSICS
Volume 5, Issue 5, Pages -Publisher
SCIPOST FOUNDATION
DOI: 10.21468/SciPostPhys.5.5.048
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Funding
- ERC [679278 Emergent-BH]
- Knut and Alice Wallenberg Foundation [113410212]
- Swedish Research Council [113410213]
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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. Copyright M. Guica.
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