Contribution to a conference proceedings

FZJ-2021-03536

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Qubit Gate Quality Loss Through Circuit Parasitics and Noise

Geck, L. (Corresponding author)FZJ* ; van Waasen, S.FZJ*

2021

Abstract: This work aims to find signal sequences that implementhigh-quality logic gates for single GaAs qubits in a quantumcomputer. To achieve that an optimization of the gate quality witha scalable electronic architecture in mind is done. In addition, abehavioral model of the qubit and the control electronics in the QInterfaceis implemented. The electronic model includes typicalintegrated circuit impairments such as process variations andparasitic capacitors. While the initial quality of the optimizedgates is high, simulations with the implemented model showpartly large quality reductions for some impairments. A majorquality loss is for example caused by parasitic capacitors, butsome non-ideal effects can be mitigated through pre-distortion,among others.

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Contributing Institute(s):

1. Zentralinstitut für Elektronik (ZEA-2)

Research Program(s):

1. 5223 - Quantum-Computer Control Systems and Cryoelectronics (POF4-522) (POF4-522)

Appears in the scientific report 2021

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