Sensor-assisted fault mitigation in quantum computation

Abstract

We propose a method to assist fault mitigation in quantum computation through the use of sensors co-located near physical qubits. Specifically, we consider using transition edge sensors co-located on silicon substrates hosting superconducting qubits to monitor for energy injection from ionizing radiation, which has been demonstrated to increase decoherence in transmon qubits. We generalize from these two physical device concepts and explore the potential advantages of co-located sensors to assist fault mitigation in quantum computation. In the simplest scheme, co-located sensors beneficially assist rejection of calculations potentially affected by environmental disturbances. Investigating the potential computational advantage further required development of an extension to the standard formulation of quantum error correction. In a specific case of the standard three-qubit, bit-flip quantum error correction code, we show that given a 20% overall error probability per qubit, approximately 90% of repeated calculation attempts are correctable. However, when sensor-detectable errors account for 45% of overall error probability, the use of co-located sensors uniquely associated with independent qubits boosts the fraction of correct final-state calculations to 96%, at the cost of rejecting 7% of repeated calculation attempts.

References in corpus (27)

• Charge insensitive qubit design derived from the Cooper pair box
• A Quantum Engineer's Guide to Superconducting Qubits
• Superconducting nanowire single-photon detectors: physics and applications
• Quantum Error Correction for Beginners
• Hybrid quantum-classical algorithms and quantum error mitigation
• First results from the CRESST-III low-mass dark matter program
• Characterization of addressability by simultaneous randomized benchmarking
• First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector
• Projected Sensitivity of the SuperCDMS SNOLAB experiment
• Correlated Charge Noise and Relaxation Errors in Superconducting Qubits
• Millisecond charge-parity fluctuations and induced decoherence in a superconducting qubit
• Relaxation and frequency shifts induced by quasiparticles in superconducting qubits
• Impact of ionizing radiation on superconducting qubit coherence
• Hot non-equilibrium quasiparticles in transmon qubits
• Quasiparticle dynamics in granular aluminum close to the superconductor to insulator transition
• Demonstration of quantum advantage in machine learning
• Reducing the impact of radioactivity on quantum circuits in a deep-underground facility
• Exclusion Limits on the WIMP-Nucleon Cross-Section from the First Run of the Cryogenic Dark Matter Search in the Soudan Underground Lab
• Direct Dispersive Monitoring of Charge Parity in Offset-Charge-Sensitive Transmons
• The COSINUS project - perspectives of a NaI scintillating calorimeter for dark matter search
• Performance of the EDELWEISS-III experiment for direct dark matter searches
• Single-step implementation of high fidelity $n$-bit Toffoli gate
• The CUORE cryostat: an infrastructure for rare event searches at millikelvin temperatures
• Thermal detection of single e-h pairs in a biased silicon crystal detector
• Background Model of the CUPID-0 Experiment
• Spectroscopy of a Qubit Array via a Single Transmission Line
• Cryogenic Dark Matter Search Detector Fabrication Process and Recent Improvements

Cited by in corpus (9)

• TLS Dynamics in a Superconducting Qubit Due to Background Ionizing Radiation
• Transition Edge Sensors: Physics and Applications
• Disentangling the sources of ionizing radiation in superconducting qubits
• Cosmic-ray-induced correlated errors in superconducting qubit array
• Spectroscopic measurements and models of energy deposition in the substrate of quantum circuits by natural ionizing radiation
• Abatement of Ionizing Radiation for Superconducting Quantum Devices
• Averting multi-qubit burst errors in surface code magic state factories
• Quantum-network nodes with real-time noise mitigation using spectator qubits
• Conceptual study of a two-layer silicon pixel detector to tag the passage of muons from cosmic sources through quantum processors