吉大物理70年系列学术活动——理论物理系列讲座(二十四)

时间:2022-11-23    点击:

报告题目:2d BMSFTs

报告人:郝鹏翔,清华大学丘成桐数学科学中心

报告时间:2022年11月29日,14:30-17:30

zoom会议号:815 0890 3897密码:123456


报告摘要

  The BMS (Bondi-van der Burg-Metzner-Sachs) symmetry arises as the asymptotic symmetry of flat spacetime at null infinity. The 2d BMS field theories are a kind of non-relativistic quantum field theory equipped with the BMS3 algebra. They serve as the candidates of the dual theory of flat holography and flat space chiral gravity in 3d.

In this talk, I will report our recent study on the BMS field theories, including the properties from the general consideration of symmetry algebra and representation, the appearance of the multiplets. We also calculate the global blocks and develop BMS bootstrap. Besides, we consider the detailed free scalar and fermion models as the testing ground, solving them by canonical quantization, then organizing them in the language of BMS data. These theories feature novel properties on the primary multiplet, the staggered module and the induced module.


报告人简介

Peng-Xiang Hao got his Ph.D in physics from Peking University, supervised by Prof. Bin Chen. Now he is a postdoc in the Yau Mathematical Sciences Center, Tsinghua University, under the supervision of Prof. Wei Song. His main research interests include the holography beyond AdS/CFT correspondence and the non-Lorentz invariant field theories.


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