Nano-acoustic resonator with ultralong phonon lifetime

doi:10.1126/science.abc7312

GSTDTAP > 气候变化

DOI	10.1126/science.abc7312
	Nano-acoustic resonator with ultralong phonon lifetime
	Gregory S. MacCabe; Hengjiang Ren; Jie Luo; Justin D. Cohen; Hengyun Zhou; Alp Sipahigil; Mohammad Mirhosseini; Oskar Painter
	2020-11-13
发表期刊	Science
出版年	2020
英文摘要	The ideal platform for quantum-computing and quantum-sensing applications is likely to be a hybrid system that combines the best features of different components. Superconducting circuits are relatively advanced, and finding components that can control and manipulate the microwaves will be essential. MacCabe et al. explored the use of high-quality microresonators in which the acoustic environment could be engineered such that the phonon lifetime could be extended to more than 1 second. Operating at microwave frequencies of 5 gigahertz, these quantum acoustic-dynamic devices could be coupled with superconducting circuits. Science , this issue p. [840][1] The energy damping time in a mechanical resonator is critical to many precision metrology applications, such as timekeeping and force measurements. We present measurements of the phonon lifetime of a microwave-frequency, nanoscale silicon acoustic cavity incorporating a phononic bandgap acoustic shield. Using pulsed laser light to excite a colocalized optical mode of the cavity, we measured the internal acoustic modes with single-phonon sensitivity down to millikelvin temperatures, yielding a phonon lifetime of up to τph,0≈1.5 seconds (quality factor Q=5×1010) and a coherence time of τcoh,0≈130 microseconds for bandgap-shielded cavities. These acoustically engineered nanoscale structures provide a window into the material origins of quantum noise and have potential applications ranging from tests of various collapse models of quantum mechanics to miniature quantum memory elements in hybrid superconducting quantum circuits. [1]: /lookup/doi/10.1126/science.abc7312
领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/304144
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Gregory S. MacCabe,Hengjiang Ren,Jie Luo,et al. Nano-acoustic resonator with ultralong phonon lifetime[J]. Science,2020.
APA	Gregory S. MacCabe.,Hengjiang Ren.,Jie Luo.,Justin D. Cohen.,Hengyun Zhou.,...&Oskar Painter.(2020).Nano-acoustic resonator with ultralong phonon lifetime.Science.
MLA	Gregory S. MacCabe,et al."Nano-acoustic resonator with ultralong phonon lifetime".Science (2020).