Loading a quantum-dot based “Qubyte” register

Volk, C; Zwerver, AMJ; Mukhopadhyay, U; Eendebak, PT; van Diepen, CJ; Dehollain, JP; Hensgens, T; Fujita, T; Reichl, C; Wegscheider, W; Vandersypen, LMK

Loading a quantum-dot based “Qubyte” register

Volk, C Zwerver, AMJ Mukhopadhyay, U Eendebak, PT van Diepen, CJ Dehollain, JP

Hensgens, T Fujita, T Reichl, C Wegscheider, W Vandersypen, LMK

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Publication Type:: Journal Article
Citation:: npj Quantum Information, 2019, 5 (1)
Issue Date:: 2019-12-01

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Field	Value	Language
dc.contributor.author	Volk, C	en_US
dc.contributor.author	Zwerver, AMJ	en_US
dc.contributor.author	Mukhopadhyay, U	en_US
dc.contributor.author	Eendebak, PT	en_US
dc.contributor.author	van Diepen, CJ	en_US
dc.contributor.author	Dehollain, JP https://orcid.org/0000-0002-0425-4345	en_US
dc.contributor.author	Hensgens, T	en_US
dc.contributor.author	Fujita, T	en_US
dc.contributor.author	Reichl, C	en_US
dc.contributor.author	Wegscheider, W	en_US
dc.contributor.author	Vandersypen, LMK	en_US
dc.date.issued	2019-12-01	en_US
dc.identifier.citation	npj Quantum Information, 2019, 5 (1)	en_US
dc.identifier.uri	http://hdl.handle.net/10453/135893
dc.description.abstract	© 2019, The Author(s). Electrostatically defined quantum dot arrays offer a compelling platform for quantum computation and simulation. However, tuning up such arrays with existing techniques becomes impractical when going beyond a handful of quantum dots. Here, we present a method for systematically adding quantum dots to an array one dot at a time, in such a way that the number of electrons on previously formed dots is unaffected. The method allows individual control of the number of electrons on each of the dots, as well as of the interdot tunnel rates. We use this technique to tune up a linear array of eight GaAs quantum dots such that they are occupied by one electron each. This new method overcomes a critical bottleneck in scaling up quantum-dot based qubit registers.	en_US
dc.relation.ispartof	npj Quantum Information	en_US
dc.relation.isbasedon	10.1038/s41534-019-0146-y	en_US
dc.title	Loading a quantum-dot based “Qubyte” register	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	5	en_US
utslib.for	0206 Quantum Physics	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - QSI - Centre for Quantum Software and Information
utslib.copyright.status	open_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	5	en_US

Abstract:

© 2019, The Author(s). Electrostatically defined quantum dot arrays offer a compelling platform for quantum computation and simulation. However, tuning up such arrays with existing techniques becomes impractical when going beyond a handful of quantum dots. Here, we present a method for systematically adding quantum dots to an array one dot at a time, in such a way that the number of electrons on previously formed dots is unaffected. The method allows individual control of the number of electrons on each of the dots, as well as of the interdot tunnel rates. We use this technique to tune up a linear array of eight GaAs quantum dots such that they are occupied by one electron each. This new method overcomes a critical bottleneck in scaling up quantum-dot based qubit registers.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/135893