How Does the Hartree Model Account for the Pauli Exclusion Principle?

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Discussion Overview

The discussion centers on how the Hartree model incorporates the Pauli exclusion principle, particularly in relation to the symmetry properties of the wavefunction used in the Hartree approximation. Participants explore the implications of the approximation on the treatment of fermions and the nature of the wavefunctions involved.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant asserts that the Hartree approximation uses a symmetric product wavefunction, which leads to the conclusion that it effectively ignores the Pauli exclusion principle.
  • Another participant suggests that the Pauli exclusion principle is partially accounted for because the occupied orbitals in the Hartree model are all different.
  • A claim is made that when the Hartree approximation considers the Pauli exclusion principle, it transitions to what is referred to as the Hartree-Fock approximation, which provides an antisymmetric wavefunction.
  • A correction is issued regarding the terminology, clarifying that the correct term is "Fock" instead of "jock" in reference to the Hartree-Fock approximation.
  • One participant reiterates the initial claim about the wavefunction's symmetry properties, stating that in the Hartree approximation, the wavefunction is neither symmetric nor antisymmetric.

Areas of Agreement / Disagreement

Participants express differing views on how the Hartree approximation relates to the Pauli exclusion principle, with no consensus reached on the extent to which the principle is accounted for in the model.

Contextual Notes

There are unresolved questions regarding the definitions and implications of the wavefunction's symmetry in the context of the Hartree and Hartree-Fock approximations.

Auwings2006
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My understanding of the Hartree approximation is that the product wavefunction is symmetric rather than antisymmetric, therefore the Hartree approximation effectively ignores the Pauli exclusion principle.

So how does the Pauli-exclusion principle get taken account of in the Hartree model?

Any clarification would be great appreciated.
Auwings2006
 
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it gets taken into account to some degree because the occupied orbitals are all different.
 
hartree approx. when considers the pauli exclusion principle then it becomes hatree jock approximation .hatree jock approx. also provides antisymmetric function
 
hafsa said:
hartree approx. when considers the pauli exclusion principle then it becomes hatree jock approximation .hatree jock approx. also provides antisymmetric function

Fock, not jock.
 
yes.it was typing mistake
 
Auwings2006 said:
My understanding of the Hartree approximation is that the product wavefunction is symmetric rather than antisymmetric, therefore the Hartree approximation effectively ignores the Pauli exclusion principle.

So how does the Pauli-exclusion principle get taken account of in the Hartree model?

Any clarification would be great appreciated.
Auwings2006

In the hartree approximation the wavefunction is neither symmetric nor anti-symmetric.
 

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