Futoshi Yagi Associate Professor

Supervisor of Master's Candidates

  

  • Date of Birth: 1980-07-16

  • Date of Employment: 2018-08-27

  • Education Level: PhD graduate

  • Degree: Doctor of science

  • Business Address: X30471

  • Gender: Male

  • Professional Title: Associate Professor

  • Status: 在岗

  • Alma Mater: The University of Tokyo

  • Supervisor of Master's Candidates

  • School/Department: School of Mathematics

  • Discipline:Physics
    Mathematics
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    Recommended MA Supervisor
    Language: 中文

    Paper Publications

    6d SCFTs, 5d dualities and Tao web diagrams

    Impact Factor:6.379

    DOI number:10.1007/jhep05(2019)203

    Journal:Journal of High Energy Physics

    Abstract:We propose 5d descriptions of 6d N=(1,0) superconformal field theories arising from Type IIA brane configurations with an O8^−-plane. We T-dualize the brane diagram along a compactification circle and obtain a 5-brane web diagram with two O7^−-planes. The gauge theory description of the resulting 5d theory for a given 6d superconformal field theory is not unique, and we argue that the non-uniqueness leads to various dual 5d gauge theories. There are three sources which lead to the 5d dualities. One type comes from either resolving both or one of the two O7^−-planes. The two situations give us two different ways to read off a 5d gauge theory from essentially the same web diagram. The second type originates from different distributions of D5 or D7-branes, shifting the gauge group ranks of the 5d quiver theory. The last one comes from the 90 or 45 degree rotations of the 5-brane web diagram, which is a part of the SL(2,ℤ) duality of Type IIB string theory, leading to completely different group structure. These lead to a very rich class of dualities between 5d gauge theories whose UV completion is the same 6d superconformal field theory. We also explore Higgsing of the 6d theories and their 5d counterparts. Decoupling the same flavors from the dual 5d theories gives rise to another dual 5d theories whose UV completion is the same 5d superconformal field theory. Finally we propose the 6d description of 5d theories which is obtained by a generalization of 5d TN theories with additional flavors, which turns out not to be in the class of Type IIA brane construction generically.

    Note:The preprint version is available at https://arxiv.org/abs/1509.03300

    Co-author:Hirotaka Hayashi,Sung-Soo Kim,Kimyeong Lee,Futoshi Yagi

    Indexed by:SCI

    Discipline:Science

    Volume:05(2019)

    Issue:03

    Translation or Not:no

    Date of Publication:2019-05-29

    Included Journals:SCI

    Links to published journals:https://doi.org/10.1007/jhep05(2019)203

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