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Seminars

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  • Title:Sign flip triangulations of the amplituhedron
  • Start Date/Time:2020-11-05 / 12:30
  • End Date/Time :2020-11-05 / 13:30
    • Speaker:Dr. Ryota Kojima (National Taiwan University)
    • Place:Lecture Room A of NCTS, 4F, 3rd General Building, Nat'l Tsing Hua Univ.
    • Host:Prof. Chong-Sun Chu (NTHU)
    • Abstract:In our recent work, we present new triangulations of the m=4 amplituhedron relevant for scattering amplitudes in planar N=4 super-Yang-Mills, obtained directly from the combinatorial definition of the geometry. Using the “sign flip” characterization of the amplituhedron, we reproduce the canonical forms for the all-multiplicity NMHV and NNMHV tree-level as well as the NMHV one-loop cases, without using any input from traditional amplitudes methods. Our results suggest a new path forward for computing higher loop amplitudes geometrically. In this talk, I will review the basic notions of the amplituhedron and see how to construct the triangulation. 
       
      [Lunchbox Registration]
      If you will attend the seminar and would like to have a lunchbox on that day, please fill out the online registration form below by 10:00AM Nov. 4th (Wednesday morning). Late registration will not be accepted.
      *Note:
      1. The lunchboxes will only be prepared for the participation of professors and postdoctoral researchers.
      2. In order to prevent the potential spread of COVID-19, we suggest that you bring your own face mask and wear it while attending the seminar.
      3. You may check this web page again later after you have completed the online registeration. The data for the list of registered attendees will be updated every 5 minutes and shown at the page. 
      [List of Attendees Registered for the Lunchboxes] 

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