2018/03/16 by J.P.G. van Dijk, Jeroen P. G. van Dijk, E. Kawakami +13
Computer Science · Physics and Astronomy · #Controller (irrigation) #Fidelity #High fidelity #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum computer #Qubit #Scalability #Scaling #quant-ph
paper · pdf · doi:10.1103/physrevapplied.12.044054
published as Phys. Rev. Applied 12, 044054 (2019)
arxiv created 2018/03/16 · openalex created_date 2018/03/29 · openalex publication_date 2019/10/24 · arxiv updated 2019/10/30 · openalex updated_date 2026/08/05
A quantum computer comprises both qubits and their classical electronic interface. While much research is currently devoted solely to qubits, an efficient electronic controller is also urgently needed for a scalable quantum computer. This study uses analytical techniques to expose the effect of nonideal circuit blocks in a classical controller on qubit fidelity, for all required operations, and how fidelity is affected by the limited performance of the general-purpose, room-temperature equipment typically used with the few qubits types available today. Tailor-made controllers can achieve significantly lower cost, power consumption, and size, as required for scaling up.