Experimental Characterization of Crosstalk Errors with Simultaneous Gate Set Tomography
arXiv:2103.09890 · doi:10.1103/PRXQuantum.2.040338
Abstract
Crosstalk is a leading source of failure in multiqubit quantum information processors. It can arise from a wide range of disparate physical phenomena, and can introduce subtle correlations in the errors experienced by a device. Several hardware characterization protocols are able to detect the presence of crosstalk, but few provide sufficient information to distinguish various crosstalk errors from one another. In this article we describe how gate set tomography, a protocol for detailed characterization of quantum operations, can be used to identify and characterize crosstalk errors in quantum information processors. We demonstrate our methods on a two-qubit trapped-ion processor and a two-qubit subsystem of a superconducting transmon processor.
20 pages, 8 figures, 6 tables
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Cited by in corpus (13)
- Quantum Crosstalk Robust Quantum Control
- Predicting non-Markovian superconducting qubit dynamics from tomographic reconstruction
- Efficiently improving the performance of noisy quantum computers
- Estimating gate-set properties from random sequences
- Compressive gate set tomography
- A randomized benchmarking suite for mid-circuit measurements
- Demonstrating scalable randomized benchmarking of universal gate sets
- Filtering crosstalk from bath non-Markovianity via spacetime classical shadows
- Parallel tomography of quantum non-demolition measurements in multi-qubit devices
- Benchmarking universal quantum gates via channel spectrum
- Benchmarking quantum logic operations relative to thresholds for fault tolerance
- Markovian Noise Modelling and Parameter Extraction Framework for Quantum Devices
- Partial randomized benchmarking