TheF-theorem andF-maximization
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Publication:4596369
DOI10.1088/1751-8121/AA6765zbMATH Open1386.81122arXiv1608.02960OpenAlexW3125300712MaRDI QIDQ4596369
Author name not available (Why is that?)
Publication date: 1 December 2017
Published in: (Search for Journal in Brave)
Abstract: This contribution contains a review of the role of the three-sphere free energy F in recent developments related to the F-theorem and F-maximization. The F-theorem states that for any Lorentz-invariant RG trajectory connecting a conformal field theory CFT_UV in the ultraviolet to a conformal field theory CFT_IR, the F-coefficient decreases: F_UV > F_IR. I provide many examples of CFTs where one can compute F, approximately or exactly, and discuss various checks of the F-theorem. F-maximization is the principle that in an N=2 SCFT, viewed as the deep IR limit of an RG trajectory preserving N=2 supersymmetry, the superconformal R-symmetry maximizes F within the set of all R-symmetries preserved by the RG trajectory. I review the derivation of this result and provide examples.
Full work available at URL: https://arxiv.org/abs/1608.02960
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