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arXiv 0905.4645cond-mat.otherphysics.chem-phquant-ph
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相互作用一维电子系统中剪裁密度的精确纠缠和LDA纠缠

Exact and LDA entanglement of tailored densities in an interacting one-dimensional electron system

J. P. Coe, I. D'Amico

摘要:

我们计算的“确切”的潜力对应于一个一维的两个电子的相互作用系统具有特定的,定制的密度。我们使用一维密度泛函理论与局域密度近似(LDA)在同一系统上,并计算密度和能量,这是比较“确切”的。然后发现对应于LDA密度的“相互作用LDA系统”,并将其潜力与原始系统进行比较。最后计算并比较了相互作用LDA和原相互作用系统的空间纠缠度。

英文摘要:

We calculate the `exact' potential corresponding to a one-dimensional interacting system of two electrons with a specific, tailored density. We use one-dimensional density-functional theory with a local-density approximation (LDA) on the same system and calculate densities and energies, which are compared with the `exact' ones. The `interacting-LDA system' corresponding to the LDA density is then found and its potential compared with the original one. Finally we calculate and compare the spatial entanglement of the electronic systems corresponding to the interacting-LDA and original interacting system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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