Observation of quantum limit of zero sou
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Koichi Matsumoto; Toru Ikegami; Yuichi Okuda
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Article
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1994
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Elsevier Science
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English
⚖ 174 KB
We are studying the quantum limit of zero sound absorption in normal 3He in which sound quanta are absorbed or emitted directly by quasiparticles. For that experiment, high frequency ultrasound is required since the condition hto > K T must be satisfied. We have succeeded in observing zero sound at