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Topological to Gravitational Leptogenesis, via Ultra Unification

CMSA, 20 Garden St, G10 20 Garden Street, Cambridge

We propose a new mechanism for leptogenesis, named Topological Leptogenesis, in which dark matter consists of topological order, so gapped anyon excitations decay to generate the Standard Model lepton asymmetry. […]

Special Colloquium: Generating families revisited

Science Center 507 1 Oxford Street, Cambridge

Here are two facts -- about differentiable functions -- they don't teach us in calculus. (I) Functions encode interesting recipes for making spaces. (II) Families of critical points create interesting […]

Rational approximation and the AAA algorithm

CMSA, 20 Garden St, Common Room 20 Garden Street, Cambridge

Approximation by rational functions used to be mainly a theoretical subject, but with the introduction of the AAA algorithm in 2018, it became computationally practical and indeed easy. The implications […]