Workshop on Symmetries and Gravity Dates: January 21-24, 2025 Location: Harvard CMSA, 20 Garden Street, Cambridge, MA 02138 Organizers: Ibrahima Bah (Johns Hopkins University), Patrick Jefferson (Johns Hopkins University), Yiming Chen (Stanford University) Description: There is a widespread belief, that has its origins in work from the 70s, that a theory of quantum gravity cannot […]
CMSA Q&A Seminar Speaker: Edgar Shaghoulian, UC Santa Cruz Topic: What are the main questions in quantum gravity today?
Joint BHI/CMSA Foundation Seminar Location: BHI Seminar Room Speaker: Uri Kol, Harvard CMSA Title: Quantum Criticality in Black Hole Dynamics Abstract: Black hole perturbation theory captures a few important effects in the dynamics of binary mergers, such as tidal deformations and the decay of ringdown modes, as well as the physics of the photon ring. […]
Quantum Field Theory and Physical Mathematics Seminar Speaker: Vivek Saxena (YITP Stony Brook and NHETC Rutgers) Title: A homotopy of 2d SCFTs and an implication for Topological Modular Forms Abstract: The Segal-Stolz-Teichner conjecture states that there exists an isomorphism between deformation classes of two-dimensional N=(0,1) superconformal field theories (SCFTs) and generalized cohomology classes known as […]
Geometry and Quantum Theory Seminar Speaker: Keyou Zeng, Harvard CMSA Title: Review of the excision property in factorization homology
Mathematical Physics and Algebraic Geometry Seminar Speaker: Zichang Wang (Tsinghua University) Title: Stochastic Process and Noncommutative Geometry Abstract: We explain a stochastic approach to topological field theory and present a case study of quantum mechanical model and its relation to noncommutative geometry. For detail reference, see https://arxiv.org/abs/2501.12360
Thursday, Jan. 30, 2025 4:00 pm All CMSA and Math affiliates are invited.
Member Seminar Speaker: Iacopo Brivio Title: Smooth projective fibrations over the projective line and their sections Abstract: Suppose $f\colon X\to \mathbf{CP}^1$ is a smooth projective fibration, is it then true that $f$ has a section? This deceptively simple result was established by Seidel and McDuff using deep methods of symplectic geometry. Alex Pieloch recently generalized this to morphisms […]
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