Simple acoustic dispersion and attenuation relations which apply for all values of ΩΤ and which contain the zero-sound solution for ΩΤ ≫ 1 are obtained for liquid 3He. They are found to agree extremely well with published results on longitudinal zero sound. A unique feature of a zero-sound experiment is that it yields all the information necessary to obtain the nonmagnetic and non-heatconductive parameters of the normal 3He as T → 0.
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Supported by ONR Contract N00014-75-C-0246 and NSF Contract DMR 76-22306.
During the completion of this manuscript I enjoyed the hospitality of Nanking University, People's Republic of China. The cordiality of the Physics Department and its Chairman, Prof. Wei Rong-ju helped the task along.
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Rudnick, I. Zero sound and the viscoelasticity of liquid 3He. J Low Temp Phys 40, 287–296 (1980). https://doi.org/10.1007/BF00117120
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DOI: https://doi.org/10.1007/BF00117120