Speaker
Netta Engelhardt
(Massachusetts Institute of Technology (MIT))
Description
A number of recent arguments have suggested that baby universes in quantum gravity have a one-dimensional Hilbert space. I will provide a new argument, based on work with E. Gesteau, in favor of this conclusion. The argument makes use of a standard asymptotically AdS spacetime dual to a thermal state below the Hawking-Page transition. In particular, there is a low-energy, low-complexity causal wedge operator whose expectation value in the dual CFT is only consistent with a one-dimensional Hilbert space for baby universes.
External references
- 25060028
- 5232b17f-6101-4742-8ab3-bc0c0abf5953
