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 |
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。
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