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The Numerical Bootstrap of Points and Lines

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BIDW03 - The Many Faces of Boundaries, Impurities, and Defects

I will describe how to constrain the conformal field theory data attached to boundary conditions of two dimensional theories, using the numerical bootstrap. Even for rational theories, it is hard to construct examples of boundary conditions which break all symmetry except Virasoro, let alone classify them. Yet, as always, the OPE data associated with each conformal boundary condition obeys crossing and unitarity. The ensuing constraints can be organized in a semidefinite program, which allows exploration of a multi-dimensional parameter space involving bulk and boundary data.

This talk is part of the Isaac Newton Institute Seminar Series series.

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