Journal
PHYSICS LETTERS B
Volume 802, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2020.135202
Keywords
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Funding
- Swiss National Science Foundation [200020-169696]
- National Center of Competence in Research SwissMAP
- ERC-AdG-2015 grant [694896]
- Swiss National Science Foundation (SNF) [200020_169696] Funding Source: Swiss National Science Foundation (SNF)
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In arXiv:1909.01269 it was shown that the scaling dimension of the lightest charge n operator in the U (1) model at the Wilson-Fisher fixed point in D = 4 - epsilon can be computed semiclassically for arbitrary values of lambda n, where lambda is the perturbatively small fixed point coupling. Here we generalize this result to the fixed point of the U (1) model in 3 - epsilon dimensions. The result interpolates continuously between diagrammatic calculations and the universal conformal superfluid regime for CFTs at large charge. In particular it reproduces the expectedly universal O(n(0)) contribution to the scaling dimension of large charge operators in 3D CFTs. (C) 2020 Published by Elsevier B.V.
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