Surface acoustic wave resonators in the quantum regime
Surface acoustic wave resonators in the quantum regime
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DOI：
10.1103/physrevb.93.041411
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发表时间：
2016-01-15
影响因子：
3.7
通讯作者：
Leek, P. J.
中科院分区：
文献类型：
--
作者：
Manenti, R.;Peterer, M. J.;Leek, P. J.
我们提出了系统的测量表面声波（SAW）谐振器的ST-X石英在千兆赫范围内的质量因子在10 mK的温度。我们证明了内部品质因数Q（i）在0.5 GHz时接近50万，并表明Q（i）>= 4.0 x 10（4）在高达4.4 GHz时是可实现的。我们证明了传播损耗对频率的多项式依赖性，以及Q（i）在低功率下饱和的弱驱动功率依赖性，后者与耦合到两级系统的浴相一致。我们的研究结果表明，声表面波谐振器是有前途的设备与超导量子电路集成。
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 mK. We demonstrate an internal quality factor Q(i) approaching 0.5 million at 0.5 GHz and show that Q(i) >= 4.0 x 10(4) is achievable up to 4.4 GHz. We show evidence for a polynomial dependence of propagation loss on frequency, as well as a weak drive power dependence of Q(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.