CMSA EVENTS
June 4, 2020 10:30 amIn this talk, I will introduce a class of gapped fracton models, dubbed “cage-net fracton models”. I will first review the coupled layer construction for exactly solvable fracton models. This construction leads to...
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INFORMAL GEOMETRY AND DYNAMICS
June 3, 2020 4:00 pmThurston's Master Teapot is the closure of the set of all points $(z,\lambda) \in \mathbb{C} \times \mathbb{R}$ such that $\lambda$ is the growth rate of a critically periodic unimodal self-map of...
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CMSA EVENTS
June 3, 2020 10:30 amWe discuss properties of magnetically charged black holes in the Standard Model. We will discuss how the electroweak symmetry is restored around the black hole. In addition, the Hawking evaporation...
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CMSA EVENTS
June 2, 2020 9:30 amIn this talk, we will first review a symplectic realization of the SYZ program and some of its applications. Then I will explain some recent works on equivariant Lagrangian Floer...
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MATHEMATICAL PICTURE LANGUAGE
June 2, 2020 10:00 amKitaev's quantum double models in 2D provide some of the most commonly studied examples of topological quantum order. In particular, the ground space is thought to yield a quantum error-correcting...
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CMSA EVENTS
May 28, 2020 10:30 amA Van Hove singularity (VHS) of the density of states (DOS) is universal in a periodic system. In two dimensions, a saddle point of energy dispersion yields a logarithmic divergence...
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CMSA EVENTS
May 27, 2020 1:30 pmI will describe a construction of gapped 3D lattice models with non-Abelian fractons from gauging subsystem symmetries of topological layers. I will describe how this relates to previously constructed fracton models with...
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MATHEMATICAL PICTURE LANGUAGE
May 26, 2020 10:00 amI'll tell a mathematical story that runs from Archimedes' hat-box theorem of ~200BC (which he used to calculate the surface area of the sphere), to the properties of "Porter-Thomas" probability distributions,...
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CMSA EVENTS
May 22, 2020 2:00 pmPlease register here to attend any of the lectures. Title: From string theory and Moonshine to vertex algebras Abstract: This is a brief survey of the early historical development of vertex...
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CMSA EVENTS
May 22, 2020 12:30 pmPlease register here to attend any of the lectures. Title: Four-dimensional topology Abstract: I will outline the history of four-dimensional topology. Some major events were the work of Donaldson and Freedman...
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