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January 10, 2020
Title: Programmable Quantum Simulators with Atoms and Ions
Center for Quantum Physics, University of Innsbruck, and Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, Innsbruck, Austria
Abstract: Programmable quantum simulators have recently emerged as a new paradigm in quantum information processing. In contrast to the universal quantum computer, programmable quantum simulators are non-universal quantum devices with restricted sets of quantum operations based on analog building blocks, which however can be naturally scaled to a large number of qubits. In this talk we discuss PQS based on trapped-ion platforms in an Innsbruck theory-experiment collaboration. We will focus on two applications: (i) demonstration of variational quantum simulation of lattice models, illustrated here by the Schwinger Model as 1D QED; (ii) implementation of measurement protocols based on statistical correlations between randomized measurements, allowing measurement of Renyi (entanglement) entropies, out-of-time-ordered correlation functions and cross-platform verification of quantum devices.