Superfluidity of a Dilute ^3He-^4He Solution : Taking into Account the Effect of Backflow of ^3He by ^4He : Condensed Matter and Statistical Physics
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The interaction between two ^3He atoms is calculated by taking into account the backflow effect of ^3He by the ^4He in the ^3He-^4He mixture. The effect contributes solely to the P wave part of the interaction. The repulsive S wave part of the contact interaction contributes to the exchange interaction between the ^3He atoms, while the direct one phonon exchange interaction contributes both to the S and P wave attractive interactions. The overall contribution to the attractive interaction is dominated by the P wave part and the superfluidity in the P wave is more predominant than in the S wave for the 5% dilute ^3He-^4He solution, and vice versa for the 1.3% solution.
- 理論物理学刊行会の論文
- 1993-08-25
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