Bose-einstein condensation and spatial correlations in 4He
Bose-einstein condensation and spatial correlations in 4He
复制标题
4He 中的玻色-爱因斯坦凝聚和空间相关性
作者：
Mayers
本文介绍了一种计算液态~ 4 He基态性质的新的Monte Carlo方法。结果表明，玻色-爱因斯坦凝聚（BEC）意味着波函数的离域。结果表明，静力结构因子与BEC之间没有普遍的联系。有人建议，观察到的连接在液体4 He是由于在液体结构中，这是必要的，使波函数可以离域，在硬核相互作用的存在下，空间的创建。结果表明，这一建议是定量一致的液体4 He的观察。
A new Monte Carlo method for calculating ground-state properties of liquid 4He is described. It is shown that Bose-Einstein condensation (BEC) implies delocalization of the wave function. It is shown that there is no general connection between the static structure factor and BEC. It is suggested that the observed connection in liquid 4He is due to the creation of spaces in the liquid structure, which are required so that the wave function can delocalize, in the presence of the hard-core interactions. It is shown that this suggestion is quantitatively consistent with observations on liquid 4He.