Theory of Triple Refraction and Reflection at a Boundary of Liquid He II
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概要
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Phonons and rotons in liquid helium II eject 'He atoms in evaporation through asingle-quantum process. We investigate this phenomenon based on the concept of the"dressed-boson" introduced in the previous work. It is explained why one phonon(or roton) can eject only one helium atom. We discuss the reverse process and findthat a beam of helium atoms branches to three refracting beams at a liquid-gas bound-ary. The values of the transmission rates to the three beams are calculated. Next, weinvestigate reflection of a phonon (or roton) at a boundary between liquid helium IIand solid. In the phenomena, a beam composed of phonons (or rotons) is also ex-pected to branch into three beams after reflection.
- 社団法人日本物理学会の論文
- 1989-10-15
著者
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Sasaki Shosuke
Department Of Physics College Of General Education Osaka University
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Kunimasa Tosaku
Faculty Of Science Osaka University
関連論文
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