N-Representability Problem: Conditions on Geminals
N-Representability Problem: Conditions on Geminals
复制标题
N-表示性问题：双子座的条件
DOI：
10.1103/physrev.183.129
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发表时间：
1969
期刊：
影响因子：
--
通讯作者：
M. Ruskai
中科院分区：
文献类型：
--
作者：
M. Ruskai
The N-representability problem is approached by considering geminal product expansions of symmetric and antisymmetric functions. The N-completeness problem, ie, the problem of determining when a set of geminals is a suitable basis for expanding symmetric or antisymmetric N-particle functions, is considered. New necessary conditions are given for both N-completeness and N-representability. In some cases, one can also obtain sufficient conditions; examples of such cases are discussed. The circumstances under which a density matrix can be derived from two or more different functions are also treated. Finally, extensions to higher order are also mentioned.
