06/05
2023
Seminar
- Title题目 On effective field theory with celestial dual
- Speaker报告人 任乐成 (布朗大学)
- Date日期 2023年6月5日 13:00
- Venue地点 6509
Abstract摘要
We compute the deformation of the $w_{1+\infty}$ algebra of soft graviton, gluon and scalar currents in the Celestial CFT due to non-minimal couplings. Such deformed algebra shares some similarities with the $W_{1+\infty}$ algebra but has essential differences. We find that the Jacobi identity of the algebra, as well as the associativity of the OPE between these soft current operators, are satisfied only when the spectrum and couplings of the theory obey certain constraints. We also study the effect of these constraints on the amplitudes in the 4d bulk theory.
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何颂 研究员
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