Quantum Gravity in the Lab by Brian Swingle

Explore quantum gravity in a laboratory setting through this comprehensive lecture by Brian Swingle at the International Centre for Theoretical Sciences. Delve into topics such as simulating holographic quantum gravity, traversable wormholes, and the Sachdev-Ye-Kitaev model. Learn about quantum simulation techniques for both full and sparse SYK models, path integral approaches, and emergent gravity. Discover potential applications in cosmological simulations and criteria for gravity localization. Gain insights into quantum gravity as a source of surprising phenomena and its potential for inspiring new experiments.

Brian Single
Quantum Gravity in the Lab
Outline
What is quantum gravity in the lab?
Universal quantum computer
Simulating holographic quantum gravity
Quantum gravity as a source of surprising phenomena
Quantum gravity inspired experiments
Inspiration: traversable wormholes
Operator on left vs right
Size winding
Different regimes
Towards efficient algorithms
Sachdev-Ye-Kitaev model q-fermion {Xa, Xb} = da,b dim H = 2N/2
Quantum simulation - full SYK
Sparse SYK pruned model, q=4 example
Quantum simulation - sparse SYK
Path integral approach
Saddle points: kq-regular hypergraph model
Quadratic fluctuations 1
Emergent gravity is still present
Other universes?
QETW
Need another ingredient
Conclusion
Sparse SYK pruned model, q=4 example
Towards cosmological simulations
Criteria for gravity localization