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High Energy Theory Informal Meeting

# High Energy Theory Informal Meeting 2020-2021

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This meeting is for relatively informal discussions on topics that happen to be interesting us - occasionally we also have a formal seminar. The organizer of this seminar is Po-Shen Hsin (phsin@caltech.edu). All talks are via Zoom. (contact the organizer for the zoom link if not on the mail list). The talks are at 1:30pm Pacific time (unless indicated*)

### Fall 2020 - Spring 2021

Sept 30 | Yifan Wang, Harvard | Classifying Superconformal Defects in Diverse Dimensions |

Oct 28 | Jingxiang Wu (Perimeter) | Integrable Kondo line defect, 4D Chern Simons, and ODE/IM correspondence |

Nov 4 | Po-Shen Hsin (Caltech) | Higher-group symmetry and fermions |

Nov 18 | Nathan Haouzi (SCGP) | Non-Perturbative Schwinger-Dyson Equations for 3d N = 4 Gauge Theories |

Nov 25 | Julio Parra Martinez (Caltech) | N=3 four-dimensional SCFTs |

Dec 9 | Uri Kol (NYU) | The Double Copy of Electric-Magnetic Duality |

Jan 6 | Luca Iliesiu (Stanford) | A violation of global symmetries from replica wormholes and the fate of black hole remnants |

Jan 13 | Nathan Benjamin (Princeton) | Ensemble averages of torus orbifolds |

Jan 20 | Fedor Popov (Princeton) | RG Limit Cycles and "Spooky" Fixed Points in Perturbative QFT |

Jan 27 | Shu-Heng Shao (IAS) | Symmetry, Duality, and Fractons |

Feb 10 | Diego Delmastro (Perimeter) | Global Anomalies on the Hilbert Space |

Feb 24 | Mykola Dedushenko (SCGP) | Stable envelopes, phase interfaces, and quantum groups |

March 3 | Ying-Hsuan Lin (Harvard) | Lorentzian Dynamics and Factorization beyond Rationality |

March 17 | Tzu-chen Huang (Caltech) | A tale of two geometries |

April 14 | Geoffrey Penington (Berkeley) | Finding Pythons in Unexpected Places |

April 21 | Monica Jinwoo Kang (Caltech) | 6d (1,0) SCFTs on a torus and Class S |

April 28 | No seminar | |

May 5 |
Hofie Hannesdottir (Harvard) *12pm |
A Finite S-matrix |

May 12 | Du Pei (CMSA) | On Phases of 3d N=2 Theories |

May 19 | Justin Kaidi (SCGP) | Obstructions to Gapped Boundaries for (2+1)d TQFT |

May 26 | Ruben Monten (UCLA) | 3D gravity in a box |

July 7 | Hotat Lam (Princeton) |