= Simulation meeting 2020 Aug 12, 15:00- =

== Participants ==

== Minutes ==
=== Updates from Projects ===

 * IFO modeling
   * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11857|Note on FPMI]]
    * Why not to use "diff" command (and its history)
    * Updated sensing matrix with "fsig" command
    * jupyter notebook on git was updated to use python3
    * Comparison v.s. analytical calculation
   * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11858|Note on PRFPMI]]
    * Matrices do not match very much :(
    * Analytical calculations seems suspicious
   * Next steps
    * DRFPMI model
    * Include the higher order modes (FPMI, PRFPMI, DRFPMI)

 * Birefringence modeling (Haoyou) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11792|Notes]]
    * The couple cavity model can hardly reflect the real S-P conversion process as S and P modes have different responses to tunings of PRM.
    * Carefully testing a simple PRC configuration with the S-P conversion using a fake BS. In the model using a BS to separate S and P, there is i multiplied for the BS transmission, which does not happen in the real S-P conversion process. It should be properly treated in Finesse.
    * The phase factor i in the BS model is a problematic thing. We need to handle with it or find new modeling schemes.
 * OMC modeling (June Gyu)
    * Building the OMC model. Possibly some initial results will be obtained in a week or so.
 * Simulation Interface 
   * Had the second lecture by Yuzu-san on Aug 5th
    * Installed Anaconda, Finesse2
    * [[KAGRA/Subgroups/MIF/Simulation/CondaSetup | Installation memo for Finesse (Koyama)]]

=== Plan during Aug 17-27 ===
 * Hirose-san and Koyama-san will visit Kamioka
 * Yuzu-san will be in Kamioka for instruction from 17(Mon) afternoon to 26(Wed) evening.

=== Next meeting ===
 * Aug 19, 15:00-, zoom3.