Several computational techniques fall under the umbrella of ab initio methods, including:
1. Density Functional Theory (DFT): A widely used method that approximates the electronic structure of many-body systems using functionals of the electron density. 2. Hartree-Fock (HF) Method: A wavefunction-based approach that provides an approximate solution to the Schrödinger equation for a multi-electron system. 3. Quantum Monte Carlo (QMC): A stochastic method that uses random sampling to solve the Schrödinger equation. 4. Møller-Plesset Perturbation Theory (MP2): A post-Hartree-Fock method that includes electron correlation effects.
