Circuit quantum acoustodynamics with surface acoustic waves
| Autor: | Franco Nori, Joseph Rahamim, Peter Leek, Riccardo Manenti, Tanja Behrle, Andrew Patterson, Giovanna Tancredi, Anton Frisk Kockum |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Science
FOS: Physical sciences Physics::Optics General Physics and Astronomy 02 engineering and technology 01 natural sciences Article General Biochemistry Genetics and Molecular Biology Resonator Computer Science::Emerging Technologies Quantum mechanics 0103 physical sciences Quantum information lcsh:Science 010306 general physics Quantum Superconductivity Physics Quantum Physics Multidisciplinary Cavity quantum electrodynamics General Chemistry Acoustic wave 021001 nanoscience & nanotechnology Computer Science::Sound Qubit lcsh:Q Quantum Physics (quant-ph) 0210 nano-technology Mechanical wave |
| Zdroj: | Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017) Nature Communications |
| Popis: | The experimental investigation of quantum devices incorporating mechanical resonators has opened up new frontiers in the study of quantum mechanics at a macroscopic level$^{1,2}$. Superconducting microwave circuits have proven to be a powerful platform for the realisation of such quantum devices, both in cavity optomechanics$^{3,4}$, and circuit quantum electro-dynamics (QED)$^{5,6}$. While most experiments to date have involved localised nanomechanical resonators, it has recently been shown that propagating surface acoustic waves (SAWs) can be piezoelectrically coupled to superconducting qubits$^{7,8}$, and confined in high-quality Fabry-Perot cavities up to microwave frequencies in the quantum regime$^{9}$, indicating the possibility of realising coherent exchange of quantum information between the two systems. Here we present measurements of a device in which a superconducting qubit is embedded in, and interacts with, the acoustic field of a Fabry-Perot SAW cavity on quartz, realising a surface acoustic version of cavity quantum electrodynamics. This quantum acoustodynamics (QAD) architecture may be used to develop new quantum acoustic devices in which quantum information is stored in trapped on-chip surface acoustic wavepackets, and manipulated in ways that are impossible with purely electromagnetic signals, due to the $10^{5}$ times slower speed of travel of the mechanical waves. Comment: 12 pages, 9 figures, 1 table |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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