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Physics Colloquium – “Measuring Non-Equilibrium Quantum Dynamics with Trapped-Ion Crystals”
September 18 @ 4:00 pm
Abstract: Benchmarking quantum dynamics is a challenge as the system size grows. I will qualitatively discuss how we can engineer quantum magnetic interactions and perform quantum simulations with planar crystals of hundreds of trapped ions. To benchmark dynamics we measure the evolution of spin-squeezing and out-of-time-order correlations (OTOCs). OTOCs quantify the build-up of correlations and the spread of quantum information, and are accessible through global spin measurements and time reversal of the Hamiltonian dynamics.
Berthoud Hall 241