SEMINARS, CMSA EVENTS
November 7, 2023 4:30 pmWe study defects in symmetry breaking phases, such as domain walls, vortices, and hedgehogs. In particular, we focus on the localized gapless excitations that sometimes occur at the cores of...
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CMSA GENERAL RELATIVITY SEMINAR, CMSA EVENTS
November 7, 2023 11:00 am Relativistic fluids are known to form shocks during their evolution from near-homogeneous initial data. In expanding spacetimes, shock formation is suppressed, if the expansion is sufficiently strong. We refer to...
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CMSA EVENTS
November 6, 2023 4:30 pmIn 1932, motivated by questions in statistical and celestial mechanics, von Neumann proposed classifying the statistical behavior of dynamical systems. In the 1960's, motivated by work of Poincaré, Smale proposed...
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SEMINARS, CMSA EVENTS
November 6, 2023 10:30 amIn mirror symmetry, the dual object to a Fano variety is a Landau-Ginzburg model. Broadly, a Landau-Ginzburg model is quasi-projective variety Y with a superpotential function w, but not all...
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SEMINARS, CMSA EVENTS
November 3, 2023 10:00 amIt is by now well-understood that gapped ground states of local Hamiltonians can be classified topologically, and the nontrivial states exhibit many interesting topological phenomena. In this talk I’ll discuss...
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SEMINARS, CMSA EVENTS
November 2, 2023 4:30 pmA central goal of condensed matter physics is to understand which quantum phases of matter can emerge in a quantum material. For this purpose, one should be able to not...
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SEMINARS, CMSA EVENTS
November 1, 2023 3:30 pmMany modern learning methods, such as deep neural networks, are so complex that they perfectly fit the training data. Despite this, they generalize well to the unseen data. Motivated by...
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SEMINARS, CMSA EVENTS
November 1, 2023 10:30 amThe study of topological band insulators has revealed fascinating phases characterized by band topology indices, harboring extraordinary boundary modes protected by anomalous symmetry actions. In strongly correlated systems, it has...
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SEMINARS, CMSA EVENTS
October 30, 2023 4:30 pmGiven a non-necessarily commutative ring with unit and an additive subcategory of the category of right modules, one can consider complexes of modules in the subcategory and the corresponding homotopy...
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CMSA EVENTS
October 27, 2023 - October 28, 2023 12:00 amMathematics in Science: Perspectives and Prospects A showcase of mathematics in interaction with physics, computer science, biology, and beyond. October 27–28, 2023 Location: Harvard University Science Center Hall D & via...
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