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Displacemon electromechanics: How to detect quantum interference in a nanomechanical resonator

Abstract:

We introduce the "displacemon" electromechanical architecture that comprises a vibrating nanobeam, e.g., a carbon nanotube, flux coupled to a superconducting qubit. This platform can achieve strong and even ultrastrong coupling, enabling a variety of quantum protocols. We use this system to describe a protocol for generating and measuring quantum interference between trajectories of a nanomechanical resonator. The scheme uses a sequence of qubit manipulations and measurements to cool the reso...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevX.8.021052

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics; Atomic and Laser Physics
Role:
Author
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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Oxford college:
Lady Margaret Hall
Role:
Author
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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
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Name:
Engineering and Physical Sciences Research Council
Grant:
EP/N014995/1
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Name:
Royal Academy of Engineering
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Name:
Templeton World Charity Foundation
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Name:
Foundational Questions Institute
Publisher:
American Physical Society
Journal:
Physical Review X More from this journal
Volume:
8
Issue:
2
Pages:
021052
Publication date:
2018-05-24
Acceptance date:
2018-04-10
DOI:
EISSN:
2160-3308
Pubs id:
pubs:855788
UUID:
uuid:ab479e89-4ef7-4ef9-a0d8-a3fe36882c73
Local pid:
pubs:855788
Source identifiers:
855788
Deposit date:
2018-06-25

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