IQIM Postdoctoral and Graduate Student Seminar

Abstract: Rydberg atom-arrays have emerged as a versatile platform for quantum computing, simulation, and metrology; here I will discuss these devices, and in particular show how utilizing the rich level structure of two valence electron atoms allows for high fidelity state preparation, measurement, and two-qubit entanglement. Graduating from two-body to the many-body, I will then discuss efforts to scale these devices, and in particular I will focus on the difficult task of quantitatively verifying the evolution of a large-scale analog quantum simulator. To that end, I will show off a recently developed device benchmarking protocol that is simple to implement (both in terms of experimental complexity and sample efficiency), and which is based on the discovery of universal random ensembles emerging from the time-independent dynamics of quantum systems. Finally, I will demonstrate new applications which become possible through verifiable quantum evolution, including competitive device benchmarking up to 30 qubits, in situ learning of local Hamiltonian parameters, progress towards verifying preparation fidelity of interesting ground states, and possibilities for demonstrating quantum advantage with a near term quantum simulator.

Attend by zoom at https://caltech.zoom.us/j/88407627311?pwd=RGx4MlpSUnBLbDJvdE4rS1FHbWZvUT09