Hartree approximation

Japanese: ハートリー近似 - ハートリーきんじ(英語表記)Hartree approximation
Hartree approximation
An approximation method for dealing with many-particle systems in quantum mechanics. The wave function ψ(1, 2, ..., N ) of an N -particle system is approximated by the product of one-body wave functions, such as ψ(1)ψ(2)...ψ( N ). This method does not satisfy the Pauli principle for the wave function of the entire system, so it is not a good approximation for systems of fermions such as electrons, and the Hartree–Fock approximation must be used.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
量子力学において多粒子系を扱う近似法の1つ。 N 個の粒子系の波動関数 ψ(1,2,…,N) を ψ(1)ψ(2)…ψ(N) のように一体波動関数の積で近似する方法。この方法では,全系の波動関数はパウリの原理を満たしていないから,電子のようなフェルミオンの系に対してはよい近似とはいえず,ハートリー=フォック近似を用いる必要がある。

出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報

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