Great progress has been made with silicon in scaling up the number of quantum dots in linear arrays, with realizations of up to nine quantum dots. However, a crucial requirement for quantum computation is the ability to engineer two-dimensional quantum dot arrays. This step will increase qubit interconnectivity and could enable to perform quantum error correction using the surface code. Here, we present the realization of two-dimensional silicon quantum dot arrays, defined in isotopically enriched Si/SiGe heterostructures using single layer and overlapping gate schemes. We show that quantum dots can be tuned to the single-electron regime, as confirmed by simultaneous charge sensing using two nearby quantum dot charge sensors. We concentrate on experimental results in gaining control over the quantum dot system focusing on quantum information processing with quantum dots realized in two-dimensional arrays.
*We acknowledge funding by the Netherlands Organization of Scientific Research (NWO) for a VIDI grant. The authors are grateful for support from Intel. Research was sponsored by the Army Research Office (ARO) and was accomplished under Grant No. W911NF-17-1-0274.
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Presenters
Marcel Meyer
QuTech, Delft University of Technology
Authors
Marcel Meyer
QuTech, Delft University of Technology
Florian Unseld
QuTech, Delft University of Technology
Chien-An Wang
QuTech, Delft University of Technology
Luca Petit
QuTech, Delft University of Technology
Delft University of Technology
Sergei Amitonov
Delft University of Technology
QuTech, Delft University of Technology
Harmen Gerrit Johan Eenink
QuTech, Delft University of Technology
Nico Hendrickx
QuTech, Delft University of Technology
Delft University of Technology
QuTech and Kavli Institute of Nanoscience, Delft University of Technology
Kostas Tsoukalas
QuTech, Delft University of Technology
Anne-Marije Zwerver
Delft University of Technology
QuTech, Delft University of Technology
Mateusz T Madzik
Delft University of Technology
QuTech, Delft University of Technology
Univ of New South Wales
Will Lawrie
QuTech, Delft University of Technology
Delft University of Technology
QuTech and Kavli Institute of Nanoscience, Delft University of Technology
Delphine Brousse
TNO
QuTech, Delft University of Technology
Amir Sammak
QuTech and Netherlands Organisation for Applied Scientific Research (TNO)
TNO
QuTech, Delft University of Technology
Netherlands Organization for Applied Scientific Research (TNO)
Delft University of Technology
Giordano Scappucci
Delft University of Technology
QuTech, Delft University of Technology
QuTech and Kavli Institute of Nanoscience, TU Delft
QuTech and Kavli Institute of Nanoscience, Delft University of Technology
Lieven Vandersypen
Delft University of Technology
Qutech and Kavli Institute of Nanoscience, Delft University of Technology
QuTech, Delft University of Technology
QuTech and Kavli Institute of Nanoscience, Delft University of Technology
Qutech, Delft University of Technology
Menno Veldhorst
QuTech, Delft University of Technology
Delft University of Technology
QuTech and Kavli Institute of Nanoscience, Delft University of Technology
