Large charge at large N

Thursday, 5 September, 2019

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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.


Luis Alvarez-Gaume
Domenico Orlando
Susanne Reffert