Surface acoustic wave resonators in the quantum regime
| Autor: | Manenti, R., Peterer, M. J., Nersisyan, A., Magnusson, E. B., Patterson, A., Leek, P. J. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Phys. Rev. B 93 (2016) 041411(R) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.93.041411 |
| Popis: | We present systematic measurements of the quality factors of surface acoustic wave (SAW) resonators on ST-X quartz in the gigahertz range at a temperature of $10 \, \textrm{mK}$. We demonstrate a internal quality factor $Q_\mathrm{i}$ approaching $0.5$ million at $0.5 \, \textrm{GHz}$ and show that $Q_\mathrm{i}\geq4.0\times10^4$ is achievable up to $4.4 \, \textrm{GHz}$. We show evidence for a polynomial dependence of propagation loss on frequency, as well as a weak drive power dependence of $Q_\mathrm{i}$ that saturates at low power, the latter being consistent with coupling to a bath of two-level systems. Our results indicate that SAW resonators are promising devices for integration with superconducting quantum circuits. Comment: 5 pages, 4 figures |
| Databáze: | arXiv |
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