2021/06/03 by Siyuan Niu, Aida Todri-Sanial
Computer Science · Physics and Astronomy · #cs.AR #quant-ph
published as IEEE Computer Society Annual Symposium on VLSI 2021, Jul 2021, Tampa, Florida, United States
arxiv created 2021/06/03 · arxiv updated 2021/06/04
Noisy Intermediate-Scale Quantum (NISQ) hardware has unavoidable noises, and crosstalk error is a significant error source. When multiple quantum operations are executed simultaneously, the quantum state can be corrupted due to the crosstalk between gates during simultaneous operations, decreasing the circuit fidelity. In this work, we first report on several protocols for characterizing crosstalk. Then, we discuss different crosstalk mitigation methods from the hardware and software perspectives. Finally, we perform crosstalk injection experiments on the IBM quantum device and demonstrate the fidelity improvement with the crosstalk mitigation method.