The kinetic theory of first sound in a quantum liquid is presented. The results for velocity and sound attenuation are obtained and found to be valid over a wide range of frequencies, including hydrodynamic, kinetic, and intermediate regimes, and throughout the whole temperature range in which a qua
Detection and generation of first sound in4He by vibrating superleak transducers
โ Scribed by N. Giordano; N. Edison
- Publisher
- Springer US
- Year
- 1986
- Tongue
- English
- Weight
- 628 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0022-2291
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We present experimental results on the attenuation and velocity of first sound in a saturated (X = 0.064) JHe-4He mixture. The measurements were performed at very low temperature (3.5 < T< 20 mK) with relatively low frequencies (around 1 MHz) at saturated vapor pressure, using a CW technique. Though
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