• Swampland Program

    CMSA 20 Garden Street, Cambridge, MA, United States

    During the 2021–2022 academic year, the CMSA will host a program on the so-called “Swampland.” The Swampland program aims to determine which low-energy effective field theories are consistent with nonperturbative quantum gravity considerations. Not […]

  • CMSA Colloquium 9/15/2021 – 5/25/2022

    CMSA 20 Garden Street, Cambridge, MA, United States

    During the 2021–22 academic year, the CMSA will be hosting a Colloquium, organized by Du Pei, Changji Xu, and Michael Simkin. It will take place on Wednesdays at 9:30am – 10:30am (Boston time). The […]

  • General Relativity Program

    CMSA Room G10 CMSA, 20 Garden Street, Cambridge, MA, United States

    During the Spring 2022 semester, the CMSA hosted a program on General Relativity. This semester-long program included four minicourses,  a conference, and a workshop. General Relativity Mincourses: March–May, 2022 General […]

  • Rational Polypols

    Abstract: Eugene Wachspress introduced polypols as real bounded semialgebraic sets in the plane that generalize polygons. He aimed to generalize barycentric coordinates from triangles to arbitrary polygons and further to […]

  • Virtual localization for Artin stacks

    Virtual

    Abstract: This is a report about work in progress with: Adeel Khan, Aloysha Latyntsev, Hyeonjun Park and Charanya Ravi. We will describe a virtual Atiyah-Bott formula for Artin stacks.  In the Deligne-Mumford […]

  • General Relativity Program Minicourses

    CMSA Room G10 CMSA, 20 Garden Street, Cambridge, MA, United States

    Minicourses General Relativity Program Minicourses During the Spring 2022 semester, the CMSA hosted a program on General Relativity. This semester-long program included four minicourses running in March, April, and May;  […]

  • Dimers and webs

    Virtual

    Speaker: Richard Kenyon (Yale) Title: Dimers and webs Abstract: We consider SL_n-local systems on graphs on surfaces and show how the associated Kasteleyn matrix can be used to compute probabilities of various […]

  • Tropical Lagrangian multi-sections and locally free sheaves

    Abstract: The SYZ proposal suggests that mirror symmetry is T-duality. It is a folklore that locally free sheaves are mirror to a Lagrangian multi-section of the SYZ fibration. In this talk, I will introduce the notion […]

  • Exactly Solvable Lattice Hamiltonians and Gravitational Anomalies

    Abstract: We construct infinitely many new exactly solvable local commuting projector lattice Hamiltonian models for general bosonic beyond group cohomology invertible topological phases of order two and four in any spacetime […]

  • Scaling Laws and Their Implications for Coding AI

    Virtual

    https://youtu.be/Suhp3OLASSo Speaker: Jared Kaplan, Johns Hopkins Dept. of Physics & Astronomy Title: Scaling Laws and Their Implications for Coding AI Abstract:  Scaling laws and associated downstream trends can be used […]

  • Callan Rubakov Effect and Higher Charge Monopoles

    Virtual

    Abstract: In this talk we will discuss the interaction between magnetic monopoles and massless fermions. In the 1980’s Callan and Rubakov showed that in the simplest example and that fermion-monopole interactions […]