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Pauli's Exclusion principle

  1. Jan 3, 2009 #1
    Does the exclusion principle mean that no atom and sub atomic particles can exist at the same place?

    Can I safely say that in stars the gravity is opposed by this aspect or implication of the principle?
     
  2. jcsd
  3. Jan 4, 2009 #2

    olgranpappy

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    it only applies to Fermions, e.g., electrons. No two electrons can occupy the same orbital state. More generally the many-body wavefunction of a system of electrons must be anti-symmetric with respect to interchange of any two electrons.
    there can be a degeneracy pressure, e.g., in neutron stars (neutrons are fermions), that opposes gravitational collapse.
     
  4. Jan 4, 2009 #3

    olgranpappy

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    Oh, also... Welcome to Physics Forums.
     
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