Universal Functionals in Density Functional Theory
Universal Functionals in Density Functional Theory
复制标题
密度泛函理论中的通用泛函
DOI:
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
R. Seiringer
中科院分区:
文献类型:
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作者:
Mathieu Lewin;E. Lieb;R. Seiringer
In this chapter we first review the Levy-Lieb functional, which gives the lowest kinetic and interaction energy that can be reached with all possible quantum states having a given density. We discuss two possible convex generalizations of this functional, corresponding to using mixed canonical and grand-canonical states, respectively. We present some recent works about the local density approximation, in which the functionals get replaced by purely local functionals constructed using the uniform electron gas energy per unit volume. We then review the known upper and lower bounds on the Levy-Lieb functionals. We start with the kinetic energy alone, then turn to the classical interaction alone, before we are able to put everything together. An appendix is devoted to the Hohenberg-Kohn theorem and the role of many-body unique continuation in its proof.
影响因子:
1
作者:
Petrache, Mircea;Serfaty, Sylvia
通讯作者:
Serfaty, Sylvia