Circuit quantum acoustodynamics with surface acoustic waves

The experimental investigation of quantum devices incorporating mechanical resonators has opened up new frontiers in the study of quantum mechanics at a macroscopic level. It has recently been shown that surface acoustic waves (SAWs) can be piezoelectrically coupled to superconducting qubits, and co...

Full description

Saved in:
Bibliographic Details
Published in:Nature communications 2017-10, Vol.8 (1), p.975-6, Article 975
Main Authors: Manenti, Riccardo, Kockum, Anton F., Patterson, Andrew, Behrle, Tanja, Rahamim, Joseph, Tancredi, Giovanna, Nori, Franco, Leek, Peter J.
Format: Article
Language:English
Subjects:
639/766/25/3927
639/766/483/2802
639/925/927/1064
639/925/927/481
Acoustic coupling
Architecture
Devices
Holes
Humanities and Social Sciences
multidisciplinary
Quantum electrodynamics
Quantum mechanics
Quantum phenomena
Quantum theory
Qubits (quantum computing)
Resonators
Science
Science (multidisciplinary)
Superconductivity
Surface acoustic waves
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The experimental investigation of quantum devices incorporating mechanical resonators has opened up new frontiers in the study of quantum mechanics at a macroscopic level. It has recently been shown that surface acoustic waves (SAWs) can be piezoelectrically coupled to superconducting qubits, and confined in high-quality Fabry–Perot cavities in the quantum regime. Here we present measurements of a device in which a superconducting qubit is coupled to a SAW cavity, realising a surface acoustic version of cavity quantum electrodynamics. We use measurements of the AC Stark shift between the two systems to determine the coupling strength, which is in agreement with a theoretical model. This quantum acoustodynamics architecture may be used to develop new quantum acoustic devices in which quantum information is stored in trapped on-chip acoustic wavepackets, and manipulated in ways that are impossible with purely electromagnetic signals, due to the 10 5 times slower mechanical waves. In this work, Manenti et al. present measurements of a device in which a tuneable transmon qubit is piezoelectrically coupled to a surface acoustic wave cavity, realising circuit quantum acoustodynamic architecture. This may be used to develop new quantum acoustic devices.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-017-01063-9