Quantum Acoustics with Surface Acoustic Waves

It has recently been demonstrated that surface acoustic waves (SAWs) can interact with superconducting qubits at the quantum level. SAW resonators in the GHz frequency range have also been found to have low loss at temperatures compatible with superconducting quantum circuits. These advances open up...

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Bibliographic Details
Published in:arXiv.org 2015-06
Main Authors: Aref, Thomas, Delsing, Per, Ekström, Maria K, Anton Frisk Kockum, Gustafsson, Martin V, Johansson, Göran, Leek, Peter, Magnusson, Einar, Manenti, Riccardo
Format: Article
Language:English
Subjects:
Acoustics
Circuits
Frequency ranges
Phonons
Photons
Quantum phenomena
Quantum theory
Qubits (quantum computing)
Superconductivity
Surface acoustic wave devices
Surface acoustic waves
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Summary:It has recently been demonstrated that surface acoustic waves (SAWs) can interact with superconducting qubits at the quantum level. SAW resonators in the GHz frequency range have also been found to have low loss at temperatures compatible with superconducting quantum circuits. These advances open up new possibilities to use the phonon degree of freedom to carry quantum information. In this paper, we give a description of the basic SAW components needed to develop quantum circuits, where propagating or localized SAW-phonons are used both to study basic physics and to manipulate quantum information. Using phonons instead of photons offers new possibilities which make these quantum acoustic circuits very interesting. We discuss general considerations for SAW experiments at the quantum level and describe experiments both with SAW resonators and with interaction between SAWs and a qubit. We also discuss several potential future developments.
ISSN:2331-8422
DOI:10.48550/arxiv.1506.01631