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Large charge at large N
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abstract
We apply the large-charge expansion to O(N) vector models starting from first principles, focusing on the Wilson-Fisher point in three dimensions. We compute conformal dimensions at zero and finite temperature at fixed charge Q, concentrating on the regime $1 \ll N \ll Q$. Our approach places the earlier effective field theory treatment on firm ground and extends its predictions.
Forward citations
Cited by 4 Pith papers
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Trapping-potential dependence of the unitary Fermi gas at the BCS-BEC crossover
Trap-induced corrections to the unitary Fermi gas phonon spectrum and dynamic structure factor are computed in three EFT/WKB regimes, with low-energy corrections depending on trap shape and high-energy corrections set...
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Conformal Data for the O(3) Wilson-Fisher Conformal Field Theory from Fuzzy Sphere Realization of the Quantum Rotor Model
A fuzzy-sphere realization of the quantum rotor model yields scaling dimensions and OPE coefficients for the (2+1)D O(3) Wilson-Fisher CFT, benchmarked against bootstrap and large-S predictions.
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Resurgence Analysis of the Nambu-Jona-Lasinio model at large charge
For the 3d NJL model at large charge, the scaling dimension has a convergent small-q series and an asymptotic large-q series whose nonperturbative corrections are worldline-instanton terms e^{-α√q}.
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