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首页> 外文期刊>Physica, B. Condensed Matter >Spin- and isospin-dependent momentum distributions in Fermi liquids at nonzero temperatures
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Spin- and isospin-dependent momentum distributions in Fermi liquids at nonzero temperatures

机译：非零温度下费米液体中依赖自旋和等旋的动量分布

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摘要

We explore the structure of momentum distributions of Fermi liquids such as completely polarized ~3He, unpolarized liquid ~3He, and nuclear matter at nonzero temperatures. The study employs correlated density matrix theory and adapts the algorithm to deal with spin- and isospin-dependent correlations. The analysis is based on the factor decomposition of the one-body reduced density matrix. The decomposition permits to distinguish between statistical correlations and dynamic (direct) correlations. Together with the concept of renormalized fermions the formal results open the pathway to investigate the thermal boundaries of normal Fermi phases within the correlated density matrix theory. We also discuss possible transitions from normal phases to anomalous fermion phases triggered by statistical correlations or by periodic phasephase structures.
机译：我们探索费米液体的动量分布结构，例如完全极化的〜3He，非极化的液态〜3He和非零温度下的核物质。该研究采用相关密度矩阵理论，并使该算法适应自旋和同位旋相关的相关性。该分析基于一维降密度矩阵的因子分解。分解允许区分统计相关和动态（直接）相关。连同重新归一化的费米子的概念，形式化的结果为研究相关密度矩阵理论中正常费米相的热边界开辟了道路。我们还将讨论由统计相关性或周期性相相结构触发的从正常相到异常费米子相的可能转变。

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