Journal Article

FZJ-2020-00909

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Control electronics for semiconductor spin qubits

Geck, L. (Corresponding author)FZJ* ; Kruth, A.FZJ* ; Bluhm, H.FZJ* ; Waasen, S. v.FZJ* ; Heinen, S.

2019
IOP Publishing Philadelphia, PA

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Please use a persistent id in citations: http://hdl.handle.net/2128/24290  doi:10.1088/2058-9565/ab5e07

Abstract: Future universal quantum computers solving problems of practical relevance are expected to require at least 10^6 qubits, which is a massive scale-up from the present numbers of less than 50 qubits operated together. Out of the different types of qubits, solid state qubits are considered to be viable candidates for this scale-up, but interfacing to and controlling such a large number of qubits is a complex challenge that has not been solved yet. One possibility to address this challenge is to use qubit control circuits located close to the qubits at cryogenic temperatures. In this work we evaluate the feasibility of this idea, taking as a reference the physical requirements of a two-electron spin qubit and the specifications of a standard 65 nm complementary metal-oxide-semiconductor process. Using principles and flows from electrical systems engineering we provide realistic estimates of the footprint and of the power consumption of a complete control-circuit architecture. Our results show that with further research it is possible to provide scalable electrical control in the vicinity of the qubit, with our concept.

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Contributing Institute(s):

1. Zentralinstitut für Elektronik (ZEA-2)
2. JARA Institut Quanteninformation (PGI-11)

Research Program(s):

1. 524 - Controlling Collective States (POF3-524) (POF3-524)

Appears in the scientific report 2019

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Emerging Sources Citation Index ; Web of Science Core Collection

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