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首页> 外文期刊>Physica, B. Condensed Matter >Liquid He-3 quasiparticle free-path distribution function in simulated aerogels
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Liquid He-3 quasiparticle free-path distribution function in simulated aerogels

机译:模拟气凝胶中的液态He-3准粒子自由程分布函数

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Conflicting results between different laboratories of measurements of the phase diagram of superfluid He-3 when immersed in aerogel, even with nominally identical aerogels, suggest that details of the aerogels other than the porosity are. important in determining superfluid properties. We have simulated the growth of small clusters (N similar to 10(5)) by off-lattice single-particle diffusion limited aggregation (DLA). Measurements of the free-path distribution function of He-3 quasiparticles scattered by these clusters-truncated and repeated to simulate experimental conditions-show significant differences from uncorrelated scatterers at the same density, which differences may be significant for superfluid properties. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 6]
机译:当浸入气凝胶时,即使是名义上相同的气凝胶,不同实验室的超流体He-3相图测量结果之间的冲突也表明,除了孔隙率以外,其他气凝胶的细节都是存在的。在确定超流体特性方面很重要。我们已经通过晶格外单粒子扩散限制聚集(DLA)模拟了小簇(N类似于10(5))的增长。被这些团簇散射的He-3准粒子的自由路径分布函数的测量被截断并重复以模拟实验条件-显示了在相同密度下与不相关散射体的显着差异,该差异对于超流体性质可能是显着的。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:6]

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