摘要
液态4He在Tλ=2.17K时发生相变,由HeⅠ相进入HeⅡ相,表现出“超流”等奇特性质。“超流”现象从本质上是一种量子效应———玻色凝聚,可以用玻色凝聚的统计力学理论以及“二流体模型”予以解释。
Liquid ^4He can have a λ-transition at the temperature Tλ = 2.17 K. A strange property of superfluidity will take place when the Liquid ^4He transit from the phase He Ⅰ to the phase He Ⅱ. Basically superfluidity is a kind of quantum effect, that is Bose condensation. We can explain the superfluidity phenomenon by the theory of Bose condensation in statistical mechanics and two - fluid model.
出处
《江西科学》
2005年第4期315-316,334,共3页
Jiangxi Science
关键词
λ相变
超流
玻色凝聚
二流体模型
λ- transition, Superfluidity, Bose condensation, Two - fluid model
