MATHEMATICAL PICTURE LANGUAGE
June 23, 2020 10:00 amQuantum Fourier analysis is a subject that combines an algebraic Fourier transform (pictorial in the case of subfactor theory and topological quantum field theory) with analytic estimates. We give an...
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CMSA EVENTS
June 22, 2020 9:30 amIn this talk, we construct a dgBV algebra PV*(X) associated to a possibly degenerate Calabi--Yau variety X equipped with local thickening data. This gives a version of the Kodaira--Spencer dgLa...
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CMSA EVENTS
June 18, 2020 10:30 amI will describe two new descriptions of gapped fracton topological order. These descriptions are generic and make minimal modifications to ordinary TQFT in order to obtain fracton physics. The first...
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CMSA EVENTS
June 17, 2020 10:30 amMore than 10 years ago, I showed that non-supersymmetric QCD with adjoint fermions admits a (non-thermal) compactification on $R^3 \times S^1$ where non-perturbative gauge dynamics becomes calculable. The mass gap,...
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CMSA EVENTS
June 16, 2020 9:30 amHypertoric varieties are algebraic symplectic varieties associated to graphs, or more generally certain hyperplane arrangements. They make many appearances in modern geometric representation theory. I will discuss certain infinite dimensional...
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MATHEMATICAL PICTURE LANGUAGE
June 16, 2020 10:00 amInterference is an essential part of quantum mechanics. However, an important class of Hamiltonians considered are those with "no sign problem", where all off-diagonal matrix elements of the Hamiltonian are...
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CMSA EVENTS
June 15, 2020 8:30 pmIn my talk I discuss traversable wormholes in four and two dimensions. In four dimensions I present a solution based on two magnetically charged black holes. It is a solution...
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CMSA EVENTS
June 11, 2020 10:30 amI will present our characterization and classification of 3+1 dimensional U(1) quantum spin liquids (QSLs) enriched by symmetries. These QSLs are spin system described by a deconfined U(1) gauge theory at...
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MATHEMATICAL PICTURE LANGUAGE
June 9, 2020 10:00 amThe partition function of a quantum system without a sign problem can be represented by a path integral in which every amplitude is efficiently computable and nonnegative, which is a...
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CMSA EVENTS
June 8, 2020 9:30 pmLegendrian graphs naturally appear in the study of Weinstein manifolds with a singular Lagrangian skeleton, and a tangle decomposition of Legendrian submanifolds. I will introduce various invariant of Legendrian graphs...
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