SEMINARS, OPEN NEIGHBORHOOD
September 20, 2023 4:30 pmThis talk is an elementary account of what is at first a surprising application of stable homotopy theory to theoretical physics. No specialized background is required; the storyline is the...
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SEMINARS, HARVARD-MIT COMBINATORICS
September 20, 2023 4:15 pmThe SL(3) web basis is a special basis of certain spaces of tensor invariants developed in the late 90's by Khovanov and Kuperberg as a tool for computing quantum link...
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CMSA EVENTS
September 20, 2023 3:30 pmThe replica method, together with Parisi’s symmetry breaking mechanism, is an extremely powerful tool to compute the limiting free energy of virtually any mean field disordered system. Unfortunately, the tool...
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SEMINARS, NUMBER THEORY
September 20, 2023 3:00 pmThe class number formula describes the behavior of the Dedekind zeta function at $s=0$ and $s=1$. The Stark conjecture extends the class number formula, describing the behavior of Artin $L$-functions...
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SEMINARS, CMSA EVENTS
September 20, 2023 2:00 pmWhile generative language models exhibit powerful capabilities at large scale, when either the model or the number of training steps is too small, they struggle to produce coherent and fluent...
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SEMINARS, CMSA EVENTS
September 20, 2023 10:30 amFlat bands, like those in the kagome lattice or twisted bilayer graphene, are a natural setting for studying strongly coupled physics since the interaction strength is the only energy scale...
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SEMINARS, HARVARD-MIT ALGEBRAIC GEOMETRY
September 19, 2023 3:00 pmI spent most of my time here cycling (or is it biking?) and thinking about algebraic cycles from a homotopical viewpoint. I will speak about the latter. In joint work...
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CMSA GENERAL RELATIVITY SEMINAR, CMSA EVENTS
September 19, 2023 11:00 amWe develop the reduced phase space quantization of causal diamonds in $2+1$ dimensional gravity with a nonpositive cosmological constant. The system is defined as the domain of dependence of a...
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SEMINARS, GAUGE-TOPOLOGY-SYMPLECTIC
September 15, 2023 3:30 pmSince Floer's work in 1988, various Floer homologies have been constructed for closed 3-manifolds, knots, and sutured manifolds. In 2008, Kronheimer-Mrowka proposed a conjecture about isomorphisms among Floer homologies. In...
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SEMINARS, CMSA EVENTS
September 14, 2023 12:30 pmScattering amplitudes in strong background fields provide an arena where perturbative and non-perturbative physics meet, with important applications ranging from laser physics to black holes, but their study is hampered...
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