CMSA Colloquium 9/15/2021 – 5/25/2022
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 […]
12 events found.
Why abstraction is the key to intelligence, and what we’re still missing
https://youtu.be/3Nxe7J07TQY Speaker: Francois Chollet, Google Title: Why abstraction is the key to intelligence, and what we’re still missing Abstract: This talk provides a personal perspective on the way forward towards more […]
Three-particle mechanism for pairing and superconductivity
Title: Three-particle mechanism for pairing and superconductivity Abstract: I will present a new mechanism and an exact theory of electron pairing due to repulsive interaction in doped insulators. When the […]
The Hilbert Space of large N Chern-Simons matter theories
Title: The Hilbert Space of large N Chern-Simons matter theories Abstract: We demonstrate that all known formulae for the thermal partition function for large N Chern Simons matter theory admit […]
9/17/2021 General Relativity Seminar
Title: Stable Big Bang formation for the Einstein equations Abstract: I will discuss recent work concerning stability of cosmological singularities described by the generalized Kasner solutions. There are heuristics in […]
Geometry, Entanglement and Quasi Local Data
Member Seminar Speaker: Itamar Shamir Title: Geometry, Entanglement and Quasi Local Data Abstract: I will review some general ideas about gravity as motivation for an approach based on quasi local quantities.
Strong Coupling Theory of Magic-Angle Graphene: A Pedagogical Introduction
Title: Strong Coupling Theory of Magic-Angle Graphene: A Pedagogical Introduction Abstract: In this talk, I will review a recently developed strong coupling theory of magic-angle twisted bilayer graphene. An advantage […]
Small Cosmological Constants in String Theory
Abstract: We construct supersymmetric AdS4 vacua of type IIB string theory in compactifications on orientifolds of Calabi-Yau threefold hypersurfaces. We first find explicit orientifolds and quantized fluxes for which the […]
Surfacehedra and the Binary Positive Geometry of Particle and “String” Amplitudes
Speaker: Nima Arkani-Hamed, IAS Title: Surfacehedra and the Binary Positive Geometry of Particle and “String” Amplitudes
What do bounding chains look like, and why are they related to linking numbers?
Abstract: Gromov-Witten invariants count pseudo-holomorphic curves on a symplectic manifold passing through some fixed points and submanifolds. Similarly, open Gromov-Witten invariants are supposed to count disks with boundary on a Lagrangian, […]
Symmetry types in QFT and the CRT theorem
Title: Symmetry types in QFT and the CRT theorem Abstract: I will discuss ideas around symmetry and Wick rotation contained in joint work with Mike Hopkins (https://arxiv.org/abs/1604.06527). This includes general […]
The number of n-queens configurations
Speaker: Michael Simkin, Harvard CMSA Title: The number of n-queens configurations Abstract: The n-queens problem is to determine Q(n), the number of ways to place n mutually non-threatening queens on an […]