The Anti-de Sitter/Conformal Field Theory correspondence has given us a precise description of quantum gravity in asymptotically Anti-de Sitter space, as a quantum field theory (without gravity) with one fewer spacetime dimension. This proposal has passed many tests, but the emergence of the extra dimension on the gravitational side remains rather mysterious. I will present recent work explaining how this emergence can be naturally understood as a manifestation of quantum error correction, an idea originally introduced to solve the seemingly unrelated problem of protecting a quantum computer from decoherence. We will see that this gives precise meaning to speculations over the past decade relating boundary entanglement to the emergence of bulk geometry; to emphasize this precision I will illustrate the proposal using an exactly soluble model of the correspondence constructed via tensor networks. This talk should be quite accessible to beginning graduate students!
Title
Emergent locality and gravity from quantum error correction
Published
Berkeley, CA, University of California, Berkeley, Dept. of Physics, October 10, 2016
Full Collection Name
Physics Colloquia
Type
Video
Extent
1 streaming video file
Other Physical Details
digital, sd., col.
Archive
Physics Library
Note
Recorded at a colloquium held on October 10, 2016, sponsored by the Dept. of Physics, University of California, Berkeley.
originally produced as an .mts file in 2016
Speakers: Harlow, Daniel.
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