SEMINARS, CMSA EVENTS
September 12, 2023 4:00 pmWe study Clifford locality-preserving unitaries and stabilizer Hamiltonians by means of Hermitian K-theory. We demonstrate how the notion of algebraic homotopy of modules over Laurent polynomial rings translates into the...
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CMSA GENERAL RELATIVITY SEMINAR, CMSA EVENTS
September 12, 2023 11:00 amA chaotic quantum system can be studied using the out-of-time-order correlator (OTOC). I will tell you about pole skipping — a recently discovered feature of the retarded Green’s function —...
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SEMINARS, CMSA EVENTS
September 8, 2023 10:00 amEmergent symmetry can be generalized symmetry beyond (higher) group description and/or can be anomalous. I will describe a unified theory for generalized symmetry based on symmetry/topological-order correspondence. I will also...
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CMSA EVENTS
September 7, 2023 1:30 pmIn the setting of lattice gauge theories with finite (possibly non-Abelian) gauge groups at weak coupling, we prove exponential decay of correlations for a wide class of gauge invariant functions,...
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CONFERENCES, CMSA EVENTS
August 31, 2023 - September 1, 2023 10:43 am***** On August 31–Sep 1, 2023 the CMSA will host the ninth annual Conference on Big Data. The Big Data Conference features speakers from the Harvard community as well as scholars from across...
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SEMINARS, CMSA EVENTS
August 24, 2023 10:00 amThe numbers 8 and 24 play special roles in mathematics. The number 8 is special because of Bott periodicity, the octonions and the E8 lattice, while 24 is special for...
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CMSA GENERAL RELATIVITY SEMINAR, CMSA EVENTS
July 5, 2023 2:00 pmKerr-AdS_{d+1} black holes for d ≥ 3 suffer from classical superradiant instabilities over a range of masses above extremality. We conjecture that these instabilities settle down into Grey Galaxies (GGs). Grey...
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SEMINARS, CMSA EVENTS
June 30, 2023 10:00 amIn this talk, we will discuss the problem of electrically charged, massless fermions scattering off magnetic monopoles. The interpretation of the outgoing states has long been a puzzle, as they...
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SEMINARS, CMSA EVENTS
June 26, 2023 10:00 amWe classified all chiral fermionic CFTs of central charge ≤ 16 using Kac's theorem and bosonization/fermionization. This talk will discuss the derivation of this result, its application to the classification...
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SEMINARS, CMSA EVENTS
June 13, 2023 10:00 amConformal field theories in (1+1)D are key actors in many dramas of physics and mathematics. Their classification has therefore been an important and long-standing problem. In this talk, I will...
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