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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:15020134  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Exact holographic mapping, tensor networks and space-time geometry
Speaker(s): Xiao-Liang Qi
Abstract:

Holographic duality is a duality between gravitational systems and non-gravitational systems. In this talk, I will propose a different approach for understanding holographic duality named as the exact holographic mapping. The key idea of this approach can be summarized by two points: 1) The bulk theory and boundary theory are related by a unitary mapping in the Hilbert space. 2) Space-time geometry is determined by the structure of correlations and quantum entanglement in a quantum state. When applied to lattice systems, the holographic mapping is defined by a unitary tensor network. For free fermion boundary theories, I will discuss how different bulk geometries are obtained as dual theories of different boundary states. A particularly interesting case is the AdS black hole geometry and the interpretation of the interior of a black hole. We will also discuss dual geometries of topological states of matter.

Date: 27/02/2015 - 11:00 am
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