Talk on 10/31/2018

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    • October 25, 2018 at 11:41 am #499
      rowland.208
      Keymaster

      Alex will give a journal club talk on 10/31/2018. The title is “Classification and characterization of higher-order SPT phases” which is a recent paper by Alex and Yuan-Ming https://arxiv.org/abs/1809.07325.

    • October 25, 2018 at 11:42 am #500
      rowland.208
      Keymaster

      I think the idea here is to find protected states on the edge of an edge. A hallmark of SPT phases is interesting edge modes, e.g., on the surface of a d-dimensional theory there is an interesting d-1-dimensional object. What about d-2-dimensional objects?

      • October 31, 2018 at 2:42 pm #508
        rowland.208
        Keymaster

        I asked Alex and this is not quite the right idea. The notion of confinement to a lower dimensions, e.g., 2D->1D->0D is not as important as the idea of symmetry. Where the boundary modes exist are related by symmetry.

    • October 31, 2018 at 4:02 pm #511
      rowland.208
      Keymaster

      Alex has shared his notes and agreed to upload audio of his talk.

      Notes:
      https://u.osu.edu/cmjc/files/2018/10/cmjc_10-31-2018-2oddtud.pdf

      Audio recording:
      https://u.osu.edu/cmjc/files/2018/10/cmjc_10-31-2018-2f4nw99.mp3

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