A<sc>bstract</sc> Using the large-charge expansion, we prove a necessary condition for a CFT to exhibit conformal symmetry breaking, under the assumption that a continuous global symmetry isalsobroken on the moduli space: there must be a tower of charged local operators whose scaling dimensions are asymptotically linear in the charge. In supersymmetric theories with a continuous R-symmetry and a holomorphic moduli space, the existence of such a tower of operators follows trivially from a BPS condition: their scaling dimensions are then exactly linear in the R-charge. We illustrate the more general statement in several examples of three-dimensional$$ \mathcal{N} $$ = 1 CFTs, where the leading linear behavior receives nontrivial corrections. By considering a suitable scaling limit, we also relate the spectrum of states with large charge on the cylinder (isomorphic to local operators) to the spectrum of massive particles on the moduli space.
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Twistors, Hyper-Kaehler Manifolds, and Complex Moduli
A theorem of Kuranishi (Ann Math 75(2):536–577, 1962) tells us that the moduli space of complex structures on any smooth compact manifold is always locally a finite-dimensional space. Globally, however, this is simply not true; we display examples in which the moduli space contains a sequence of regions for which the local dimension tends to infinity. These examples naturally arise from the twistor theory of hyper-Kähler manifolds.
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- Award ID(s):
- 1510094
- PAR ID:
- 10222314
- Editor(s):
- Chiossi, Simon; Fino, Anna; Musso, Emilio; Podesta, Fabio; Vezzoni, Luigi
- Date Published:
- Journal Name:
- Springer INdAM series
- Volume:
- 23
- ISSN:
- 2281-5198
- Page Range / eLocation ID:
- 207-214
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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