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Parallel Entangling Gates and Efficient Benchmark on a Trapped-Ion Quantum Computer

Sep 15

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Friday, September 15, 2023 - 2:00pm to 3:00pm


Yingyue Zhu

Trapped ions are one of the most promising platforms for quantum computing and simulation. To enhance the capability of trapped-ion systems, we develop and demonstrate a parallel entangling gate scheme on trapped-ion chains via motional modes along different spatial directions. We show the utility and advantage of this scheme by creating a three-qubit GHZ state in one step and by implementing a digital quantum simulation of the dynamics of a 1D transverse-field Ising model. Quantum benchmarking allows us to assess and compare quantum platforms as well as characterize the noise in the systems. However, it is usually a costly process. We implement an efficient Pauli channel benchmarking protocol that utilizes entanglement to achieve favorable scaling. [1]S. Chen, S. Zhou, A. Seif, and L. Jiang, Phys. Rev. A 105, 032435 (2022)