期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP02(2020)102
关键词
Chern-Simons Theories; Conformal Field Theory; Supersymmetric Gauge Theory
资金
- National Research Foundation of Korea (NRF) [2019R1A2C2004880]
- WPI Research Center Initiative, MEXT, Japan
- JSPS [17KK0087, 19K03820, 19H00689]
- National Research Foundation of Korea [2019R1A2C2004880] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Grants-in-Aid for Scientific Research [19K03820, 19H00689, 17KK0087] Funding Source: KAKEN
We study a perturbative expansion of the squashed 3-sphere partition function of 3d N = 2 gauge theories around the squashing parameter b = 1. Our proposal gives the coefficients of the perturbative expansion as a finite sum over the saddle points of the supersymmetric-localization integral in the limit b -> 0 (the so-called Bethe vacua), and the contribution from each Bethe vacua can be systematically computed using saddle-point methods. Our expansion provides an efficient and practical method for computing basic CFT data (F, C-T, C-JJ and higher-point correlation functions of the stress-energy tensor) of the IR superconformal field theory without performing the localization integrals.
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