For 10 points, name this requirement that Fermions in the same location must have different quantum numbers, a principle most often applied to the electrons in an atom.
In the liquid drop model, this idea is responsible for the asymmetry energy. This rule is the reason that, at absolute zero, Fermi gases has greater energy ideal gases. Because its nuclei obey this rule, helium-3 has two superfluid phases rather than one. The Hartree-Fock method includes this statement implicitly by assuming the wavefunction is a Slater determinant. This law is a consequence of having a system with a wavefunction that is antisymmetric with respect to interchanging coordinates. It is responsible for the degeneracy pressure seen in white dwarfs and neutron stars. For 10 points, name this requirement that Fermions in the same location must have different quantum numbers, a principle most often applied to the electrons in an atom.
In the liquid drop model, this idea is responsible for the asymmetry energy.
the {Pauli} exclusion principle