Spring 2024 Schedule

Monday
Colloquium: 4:30 pm - 5:40 pm ET

Tuesday
General Relativity Seminar: 11:00 am - 12:00 pm ET
CMSA Q&A Seminar: 12:30 pm - 1:30 pm ET

Wednesday
New Technologies in Mathematics Seminar: 2:00 pm - 3:00 pm ET

Thursday
Algebraic Geometry Pre-Seminar: 10:00 am - 10:30 am ET
Algebraic Geometry in String Theory Seminar: 10:30 am - 11:30 am ET
Active Matter Seminar: 1:00 pm - 2:30 pm ET, bi-weekly

Friday
Quantum Matter in Mathematics and Physics Seminar: 10:00 am - 11:30 am ET
Member Seminar: 12:00 pm - 1:00 pm ET


  • Thursday, April 18, 2024 10:30 AM
Category: Algebraic Geometry in String Theory Seminar
Speaker: Aaron Landesman
Title: Geometric local systems on very general curves
Algebraic Geometry in String Theory Seminar Speaker: Aaron Landesman, MIT Title: Geometric local systems on very general curves Abstract: What is the smallest genus h of a non-isotrivial curve over the generic genus g curve? In joint work with Daniel Litt, we show h is more than $\sqrt{g}$ by proving amore general result about variations of Hodge structure on sufficiently general curves. As a consequence, we show that local systems on a sufficiently general curve of geometric origin are not Zariski dense in the character variety parameterizing such local systems. This gives counterexamples to conjectures of Esnault-Kerz and Budur-Wang.
  • Friday, April 19, 2024 10:00 AM
Category: Quantum Matter
Speaker: Chetan Nayak
Title: Fusion Rule Measurement in a Topological Qubit
Quantum Matter in Mathematics and Physics Seminar Speaker: Chetan Nayak, Microsoft and UCSB Title: Fusion Rule Measurement in a Topological Qubit
  • Friday, April 19, 2024 12:00 PM
Category: Member Seminar
Speaker: Sunghyuk Park
Title: Member Seminar
CMSA Member Seminar Speaker: Sunghyuk Park, Harvard CMSA Title: 3D quantum trace map Abstract: I will speak about my recent work (joint with Sam Panitch) constructing the 3d quantum trace map, a homomorphism from the Kauffman bracket skein module of an ideally triangulated 3-manifold to its (square root) quantum gluing module, thereby giving a precise relationship between the two quantizations of the character variety of ideally triangulated 3-manifolds. Our construction is based on the study of stated skein modules and their behavior under splitting, especially into face suspensions.  
  • Tuesday, April 23, 2024 11:00 AM
Category: General Relativity Seminar
Speaker: Chris Fewster
Title: Quantum Energy Inequalities
General Relativity Seminar Speaker: Chris Fewster, York University Title: Quantum Energy Inequalities Abstract: Many theorems of mathematical relativity, including singularity and positive mass theorems, include the classical energy conditions among their hypotheses. However, matter described by quantum field theory can violate the classical energy conditions and indeed there is no lower bound to the energy density at a given point as the quantum state is varied. Do the classical theorems apply to quantised matter? In this talk I discuss Quantum Energy Inequalities, lower bounds on averages of the energy density along timelike curves or over spacetime regions, that have been proved in QFT and are the remnants of the classical energy conditions after quantisation. I will also discuss...
  • Tuesday, April 23, 2024 12:30 PM
Category: CMSA Q&A Seminar
Speaker: Melanie Weber
Title: CMSA Q&A Seminar 4/23/2024
Speaker: Melanie Weber, Harvard Question: What is the Ricci curvature of a graph?
  • Thursday, April 25, 2024 10:30 AM
Category: Algebraic Geometry in String Theory Seminar
Speaker: Alessandro Chiodo
Title: Algebraic Geometry in String Theory Seminar
Algebraic Geometry in String Theory Seminar Speaker: Alessandro Chiodo, IMJ-Paris Rive Gauche (Jussieu)
  • Friday, April 26, 2024 09:00 AM
Category: Quantum Matter
Speaker: Mikhail Ivanov
Title: Love and Naturalness
Quantum Matter in Mathematics and Physics Seminar Speaker: Mikhail Ivanov (MIT) Title: Love and Naturalness Abstract: Recent progress in gravitational wave astronomy has spurred the development of efficient tools to describe gravitational binary dynamics. One such tool is classical worldline effective field theory (EFT). In the first part of my talk, I will show how to use this EFT for systematic studies of tidal heating and deformations (Love numbers) of compact objects. I will present a gauge-invariant definition of Love numbers and show how to extract them in a coordinate-independent way from scattering amplitudes of the gravitational Raman process. I will show that the worldline EFT exhibits strong fine-tuning when applied to black holes. This gives rise to a naturalness...
  • Friday, April 26, 2024 10:30 AM
Category: Quantum Matter
Speaker: Jesse Thaler
Title: What Observables are Safe to Calculate?
Quantum Matter in Mathematics and Physics Seminar Speaker: Jesse Thaler, MIT Title: What Observables are Safe to Calculate? Abstract: In collider physics, perturbative quantum field theory is the workhorse framework for computing theoretical predictions to compare to experimental measurements. An observable is called "safe" if its cross section can be predicted order-by-order in perturbation theory with controlled non-perturbative corrections. In this talk, I show that naive definitions of "safety" are inadequate to determine which observable are perturbatively calculable. I then argue for a more refined definition of safety based on principles from optimal transport theory.
  • Friday, April 26, 2024 12:00 PM
Category: Member Seminar
Speaker: Matteo Parisi
Title: Member Seminar
CMSA Member Seminar Speaker: Matteo Parisi, Harvard CMSA
  • Monday, April 29, 2024 04:30 PM
Category: Colloquium
Speaker: Lance Dixon
Title: Colloquium
Colloquium Speaker: Lance Dixon, Stanford  
  • Tuesday, April 30, 2024 12:30 PM
Category: CMSA Q&A Seminar
Title: CMSA Q&A Seminar 4/30/2024
Speaker: Lakshminarayanan Mahadevan Question: What is morphogenesis? (Morphogenesis: geometry and biology)
  • Thursday, May 2, 2024 01:00 PM
Category: Active Matter Seminar
Title: Active Matter Seminar
Active Matter Seminar Speaker: Jayson Paulose, University of Oregon
  • Monday, May 6, 2024 04:30 PM
Category: Colloquium
Speaker: Sarah Harrison
Title: Colloquium
Colloquium Speaker: Sarah Harrison, Northeastern University
  • Tuesday, May 7, 2024 11:00 AM
Category: General Relativity Seminar
Speaker: Albert Law
Title: General Relativity Seminar
General Relativity Seminar Speaker: Albert Law, Stanford
  • Thursday, May 9, 2024 10:30 AM
Category: Algebraic Geometry in String Theory Seminar
Speaker: Eric Pichon-Pharabod
Title: Algebraic Geometry in String Theory Seminar
Algebraic Geometry in String Theory Seminar Speaker: Eric Pichon-Pharabod, Universite Paris-Saclay