Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session B72: Holistic Benchmarking and Calibration of Quantum Systems
11:30 AM–2:30 PM,
Monday, March 6, 2023
Room: Room 406
Sponsoring
Unit:
DQI
Chair: Megan Dahlhauser, Sandia National Laboratories
Abstract: B72.00002 : Estimating the Error Budgets of Quantum Gates in Superconducting Qubits
11:42 AM–11:54 AM
Presenter:
Miha Papic
(IQM Germany GmbH)
Authors:
Miha Papic
(IQM Germany GmbH)
Inés de Vega
(IQM)
There is a wide variety of different quantum characterization verification and validation (QCVV) techniques currently available (e.g. [1,2]), but most of them are based on various assumptions about the error mechanisms, most commonly the Markovianity, which may not always be justified in superconducting qubits [3]. Moreover, interpreting the results of QCVV techniques and connecting them to specific physical error mechanisms is not straightforward [4].
As an alternative, we have developed an approach tailored to superconducting quantum hardware, based on detailed simulations of the relevant noise processes and Bayesian regression. While in our previous work [5] we used a similar approach to extract environment properties and models, here the aim is to predict the infidelity contributions. Our procedure also estimates the prediction uncertainties, which may arise due to out-of-model effects.
[1] E. Nielsen, et al., Quantum 5, 557 (2021).
[2] E. Knill, et al., PRA 77, 012307 (2008).
[3] H. Zhang, et al., PRAppl. 17, 054018 (2022).
[4] R. Blume-Kohout, et al., PRX Quantum 3, 020335 (2022).
[5] M. Papic and I. de Vega, PRA 105, 022605 (2022).
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