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Fermionic CFTs at large charge and large N

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arxiv 2211.15318 v2 pith:GBCPQOBU submitted 2022-11-28 hep-th

Fermionic CFTs at large charge and large N

Nicola Dondi , Simeon Hellerman , Ioannis Kalogerakis , Rafael Moser , Domenico Orlando , Susanne Reffert This is my paper
classification hep-th
keywords chargecftsdimensionsfermionicfixedlargesuperfluidcase
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the large-charge sector of large-N fermionic CFTs in three dimensions. Depending on the model and the nature of the fixed charge, we find two types of descriptions: in terms of a superfluid or a Fermi sphere. We explicitly compute the conformal dimensions of the lowest operator of fixed charge and in the superfluid case verify the EFT predictions for the phonon spectrum.

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Cited by 1 Pith paper

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  1. Spinning the Large-Charge Bootstrap: Parity-Even Operators

    hep-th 2026-07 accept novelty 6.0

    Under minimal assumptions, the large-charge bootstrap in 3d U(1) CFTs requires a Goldstone Regge trajectory with sound speed squared equal to 1/2; extra trajectories decouple from current and stress tensor under mild ...