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<p>We show that electronic wavefunctions can be described, exactly, as the projection of a number-symmetry-broken antisymmetric product of geminals onto the appropriate <i>N</i>-electron Hilbert space. The same argument works for other composite bosons (tetrads, hexads, etc.). Inasmuch as every wavefunction can be rewritten as an antisymmetric product of quasiparticles, “everything is a mean field”.</p>

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Everything is a Mean Field: Exact Description of Electronic Structure with Antisymmetric Products of Quasiparticles

  • 期刊论文

  • 发表日期：

    2025年11月17日

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  • Paul W. Ayers,
  • Marco Martínez González

摘要

We show that electronic wavefunctions can be described, exactly, as the projection of a number-symmetry-broken antisymmetric product of geminals onto the appropriate N-electron Hilbert space. The same argument works for other composite bosons (tetrads, hexads, etc.). Inasmuch as every wavefunction can be rewritten as an antisymmetric product of quasiparticles, “everything is a mean field”.