# High Energy Theory Seminar: "Entanglement at a Scale and Recovery Maps"

Mon, 11/20/2017 - 14:00

Nima Lashkari (MIT)

I discuss the amount of information in quantum field theory states reduced to a region, that cannot be recovered from its subregion density matrices. One can reconstruct the density matrix from its subregions using recovery maps. The vacuum of a conformal field theory is a quantum Markov state and the fixed point of both transformations. I define the entanglement of scaling as a measure of entanglement at a scale, and mention connections with C-theorems proofs in 2, 3 and 4 dimensions.

David Rittenhouse Laboratory, 2N36