Superfluid nanomechanical resonator for quantum nanofluidics
Superfluid nanomechanical resonator for quantum nanofluidics
复制标题
用于量子纳米流体的超流体纳米机械谐振器
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
J. Davis
中科院分区：
文献类型：
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作者：
X. Rojas;J. Davis
我们已经开发了一个nanomechanical谐振器，其中的运动自由度是一个超流体4He振荡流限制到精确定义的nanofluidic通道。它由测量介电常数的腔内电容器组成，该电容器耦合到纳米级通道内的超流体亥姆霍兹共振，并且它能够灵敏地检测纳米流体量子流。我们提出了一个模型来解释我们的超流体纳米机械谐振器的动力学，我们展示了它如何可以用于探测受限的几何形状对热力学函数的影响。我们报告等压测量的超流部分在液体4He在不同的压力，和发病的量子湍流在限制几何。
We have developed a nanomechanical resonator, for which the motional degree of freedom is a superfluid 4He oscillating flow confined to precisely defined nanofluidic channels. It is composed of an in-cavity capacitor measuring the dielectric constant, which is coupled to a superfluid Helmholtz resonance within nanoscale channels, and it enables sensitive detection of nanofluidic quantum flow. We present a model to interpret the dynamics of our superfluid nanomechanical resonator, and we show how it can be used for probing confined geometry effects on thermodynamic functions. We report isobaric measurements of the superfluid fraction in liquid 4He at various pressures, and the onset of quantum turbulence in restricted geometry.
受限法向 3He 的解耦
影响因子：
2
作者：
Dimov S
通讯作者：
Dimov S