Coherent control of a hybrid superconducting circuit made with graphene-based van der Waals heterostructures
Name
Coherent control of a hybrid superconducting circuit made with graphene-based van der Waals heterostructures.pdf
Description
Accepted version
Size
1.56 MB
Format
Adobe PDF
Checksum (MD5)
0cc97277d4be5c9ba8e2b484ec5e330c
Author(s)
Wang, Joel I-Jan
Rodan-Legrain, Daniel
Bretheau, Landry
Campbell, Daniel L
Kannan, Bharath
Kim, David
Kjaergaard, Morten
Krantz, Philip
Samach, Gabriel O
Yan, Fei
Date Issued
2019
Journal
Nature Nanotechnology
Publisher
Springer Nature
Version
Author's final manuscript
Abstract
© 2018, The Author(s), under exclusive licence to Springer Nature Limited. Quantum coherence and control is foundational to the science and engineering of quantum systems1,2. In van der Waals materials, the collective coherent behaviour of carriers has been probed successfully by transport measurements3–6. However, temporal coherence and control, as exemplified by manipulating a single quantum degree of freedom, remains to be verified. Here we demonstrate such coherence and control of a superconducting circuit incorporating graphene-based Josephson junctions. Furthermore, we show that this device can be operated as a voltage-tunable transmon qubit7–9, whose spectrum reflects the electronic properties of massless Dirac fermions travelling ballistically4,5. In addition to the potential for advancing extensible quantum computing technology, our results represent a new approach to studying van der Waals materials using microwave photons in coherent quantum circuits.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/S41565-018-0329-2
