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摘要翻译：
我们认为，在一定温度T_k以下，固体He4位错网络中产生扭结-反扭结对的自由能变为负值。潜在的物理机制是空位的相关释放，空位释放引发了大量的费曼排列循环。因此，位错在低温下会漂移和扫掠越来越大的体积。这一现象将导致固体在低于T_k时变硬，并在第二温度T_c<T_k时出现非零超流分数。
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英文标题：
《Quantum plasticity and dislocation-induced supersolidity》
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作者：
Jean-Philippe Bouchaud, Giulio Biroli
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最新提交年份：
2008
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分类信息：
一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
We suggest that below a certain temperature T_k, the free energy for the creation of kinks-antikinks pairs in the dislocation network of solid He4 becomes negative. The underlying physical mechanism is the related liberation of vacancies which initiate Feynman's permutation cycles in the bulk. Consequently, dislocations should wander and sweep an increasingly larger volume at low temperatures. This phenomenon should lead both to a stiffening of the solid below T_k and to the appearance of a non zero superfluid fraction at a second temperature T_c < T_k.
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PDF链接：
https://arxiv.org/pdf/710.3087
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