超固态He的Gross-Pitaevskii处理
A Gross-Pitaevskii Treatment for Supersolid He
摘要：
在1-200 mK温度以下的固体He样品中观察到的非线性转动磁化率（NCRI）被证明可以用转变温度约为50 mK的空位（或更一般地说，空位）的稀薄Gross-Pitaevskii超流体来描述，其密度因晶体缺陷而局部增强。我们认为，这种密度增强的观测可以受到很大的影响。我们还认为，很可能每一个纯玻色固体的基态是超固体。
英文摘要：
The observations of non-linear rotational susceptibility (NCRI) in samples of solid He below 1-200 mK temperatures are conjectured to be describable in terms of a rarified Gross-Pitaevskii superfluid of vacancies (or, more generally, incommensuracies) with a transition temperature of about 50 mK, whose density is locally enhanced by crystal imperfections. We argue that the observations can be much affected by this density enhancement. We argue also that it is likely that the ground state of every pure Bose solid is supersolid.
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