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PIRSA:16070055

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https://pirsa.org/16070055

Modular hamiltonians in 2d CFT

Cardy, J. (2016). Modular hamiltonians in 2d CFT. Perimeter Institute for Theoretical Physics. https://pirsa.org/16070055

John Cardy University of California, Berkeley

Talk numberPIRSA:16070055
DOI10.48660/16070055
Source RepositoryPIRSA
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Talk Type Conference
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Abstract

I enumerate the cases in 2d CFT when the modular hamiltonian (log of the reduced density matrix) may be written as an appropriate integral over the energy-momentum tensor times a local weight. This includes known examples as well as new time-dependent ones. In all these cases the entanglement spectrum is that of an appropriate boundary CFT. I point out the obstruction to the existence of such a result for more complicated bipartitions of the space. This is joint work with Erik Tonni