Analyzing crosstalk error in the NISQ era

• URL: http://arxiv.org/abs/2106.01671v1
• Date: Thu, 3 Jun 2021 08:20:40 GMT
• Title: Analyzing crosstalk error in the NISQ era
• Authors: Siyuan Niu (LIRMM), Aida Todri-Sanial (LIRMM, CNRS)
• Abstract summary: NISQ hardware has unavoidable noises, and crosstalk error is a significant error source. 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.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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