Universal Fluctuations in Ergodic Quantum Dynamics and Benchmarking Entangled States

Explore universal fluctuations in ergodic quantum dynamics and their application in benchmarking highly entangled states in this 55-minute lecture presented by Daniel Mark from the Massachusetts Institute of Technology. Delve into the unique statistics of global bitstring measurements and their role in recent quantum advantage claims. Discover a sample-efficient protocol for estimating fidelity between experimentally prepared and ideal target states, applicable to a wide range of analog quantum simulators. Examine the protocol's implementation in a 60-atom analog Rydberg quantum simulator and learn how the results quantify mixed state entanglement, comparing favorably with state-of-the-art digital quantum devices performing random circuit evolution.