报告题目：Physics of Giant Graviton
报告人：MinkyooKim（ University of the Witwatersrand）
报告时间：2020年6月3日 15：00（北京时间）
报告地点：在线报告（ZOOM ID：631 6925 2944）
点击链接入会：http://cernet.zoom.com.cn/j/63169252944
报告摘要：In AdS5 x S5, giant gravitons are spherical D-branes wrapped on S3.They have holographically dual in N=4 SYM through Schur polynomialoperators.Since those scale as order N, planar Feynman diagrams are not enoughin computing physical observables even in large N limit. Namely, as thegiant graviton is a nonplanar object. it makes the problem difficult. Inmy recent works, I have studied spectra and correlators of giant gravitons withseveral methods. First, integrable subsectors of LLM geometry which is aspacetime obtained by gravity backreaction of giant gravitons were founded. Second,correlation functions of giants and a closed string were studied througheffective field theory method. Third, excited giant gravitons were studied bygroup theory. Here, central extension and a resulting lattice model arestudied.
I will introducethose in my talk and will concentrate on physical pictures rather thantechnical computations.
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