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Coupled Cluster Theory

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Multiple Choice

What is the basic idea behind Coupled Cluster Theory?

  1. It is a variational method that uses a wave function that is a linear combination of Slater determinants.
  2. It is a perturbative method that starts from a Hartree-Fock reference wave function.
  3. It is a non-variational method that uses a wave function that is a product of geminals.
  4. It is a semi-empirical method that uses experimental data to parameterize the wave function.