# The Schrödinger equation

the Schrödinger equation

$H(t)\left|\psi\left(t\right)\right\rangle = \mathrm{i}\hbar \frac{\partial}{\partial t} \left| \psi \left(t\right) \right\rangle$

where $\mathrm{i}$ is the imaginary unit, $t$ is time, $\partial / \partial t$ is the partial derivative with respect to $t$, $\hbar$ is the reduced Planck's constant (Planck's constant divided by $2\pi$), $\psi (t)$ is the wave function, and $H\!\left(t\right)$ is the Hamiltonian operator.

# Hartree-Fock (HF) or self-consistent field (SCF)

Hartree-Fock (HF) or self-consistent field (SCF)

# Density Functional Theory

Density Functional Theory