Quantum Acoustics with Surface Acoustic Waves
Book chapter, 2016

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 chapter, 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.

lithium tantalate,

electrical transmission line,

surface acoustic wave,

electric resonance,

semiclassical model,


Thomas Aref

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Per Delsing

Quantum Technology

Maria Ekström

Quantum Technology

Anton Frisk Kockum

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Martin Gustafsson

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Columbia University

Göran Johansson

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Peter Leek

University of Oxford

Einar Magnusson

University of Oxford

Riccardo Manenti

University of Oxford

Superconducting Devices in Quantum Optics

978-3-319-24091-6 (ISBN)

Studying propagating acoustic waves at the single phonon level.

Swedish Research Council (VR) (2011-4295), 2012-01-01 -- 2014-12-31.

Areas of Advance

Nanoscience and Nanotechnology


Basic sciences

Subject Categories

Atom and Molecular Physics and Optics

Other Physics Topics

Condensed Matter Physics


Nanofabrication Laboratory



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