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报告人： 吴洁强博士（麻省理工学院理论物理研究中心） 报告摘要： Thecovariant phase space method of Iyer, Lee, Wald, and Zoupas gives an elegantway to understand the Hamiltonian dynamics of Lagrangian field theories withoutbreaking covariance. The original literature however does not systematicallytreat total derivatives and boundary terms, which has led to some confusion abouthow exactly to apply the formalism in the presence of boundaries. We here givean algorithmic procedure for applying the covariant phase space formalism tofield theories with spatial boundaries. With our formalism, we derive theHamiltonian for theories with diffeomorphism symmetries, only assuming that theconfigurations satisfy equations of motion and boundary conditions, which isconsistent with previous results. If time permitted, I will illustrate thisformalism by an interesting model Jackiw-Teitolboim gravity, where we canexplicitly solve the phase space and symplectic form. With this structure, wecan rederive the traversable wormhole effect.
报告人简历： 吴洁强博士，现任麻省理工学院理论物理研究中心博士后，于北京大学物理学院获得本科与博士学位。 代表作： 1.Covariant Phase Space with Boundaries, Daniel Harlow, Jie-qiang Wu, arXiv:1906.08616 2.Floquet conformal field theory, Xueda Wen, Jie-qiang Wu, arXiv: 1802.10537 3.Witten diagram for Torus Conformal Block, P.Kraus, A.Maloney, H.Maxfield,G.S.Seng, J-q.Wu, JHEP09(2017)149 arXiv: 1706.00047 4.Holographic Entanglement Entropy for a Large Class of States in 2D CFT, BinChen, Jie-qiang Wu, JHEP09(2016)015 arXiv: 1605.06753 5.One Loop partition function in AdS_3/CFT_2, Bin Chen, Jie-qiang Wu, JHEP12(2015)109,arXiv: 1509.02062 |
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