Drawing inspiration from classical semiconductor technology, a strategy to address many quantum dots through a small number of control lines is presented. The two-dimensional array consisting of 16 germanium quantum dots can be tuned in the few-hole regime with odd charge fillings and individually addressable tunnel couplings.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 /Â 30Â days
cancel any time
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Rent or buy this article
Prices vary by article type
from$1.95
to$39.95
Prices may be subject to local taxes which are calculated during checkout
References
Fowler, A. G., Mariantoni, M., Martinis, J. M. & Cleland, A. N. Surface codes: towards practical large-scale quantum computation. Phys. Rev. A 86, 032324 (2012). A review article that presents the implementation of practical quantum error correction schemes.
Franke, D. P., Clarke, J. S., Vandersypen, L. M. K. & Veldhorst, M. Rent’s rule and extensibility in quantum computation. Microprocess. Microsyst. 67, 1–7 (2019). This paper considers solid-state qubit control strategies in relation to Rent’s rule.
Loss, D. & DiVincenzo, D. P. Quantum computation with quantum dots. Phys. Rev. A 57, 120–126 (1998). This article proposes using the spin of trapped electrons as a native two-level system for quantum computing.
Li, R. et al. A crossbar network for silicon quantum dot qubits. Sci. Adv. 4, 3960 (2018). This article presents the idea of using crossbar technology to efficiently control quantum-dot qubits.
Vandersypen, L. M. K. et al. Interfacing spin qubits in quantum dots and donors — hot, dense, and coherent. npj Quantum Inf. 3, 34 (2017). A review article that discusses using interconnected quantum-dot registers integrated with classical electronics circuits.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This is a summary of: Borsoi, F. et al. Shared control of a 16 semiconductor quantum dot crossbar array. Nat. Nanotechnol. https://doi.org/10.1038/s41565-023-01491-3 (2023).
Rights and permissions
About this article
Cite this article
A tunable two-dimensional crossbar array comprising 16 quantum dots. Nat. Nanotechnol. (2023). https://doi.org/10.1038/s41565-023-01511-2
Published:
DOI: https://doi.org/10.1038/s41565-023-01511-2
