## ABSTRACT

The solutions to the Time‐Independent Schrödinger Equation (TISE) can be found as long as we can define the Hamiltonian, which in the simplest cases, means defining the potential in which the particle of interest is moving. In the following sections, we will consider a single particle of mass, m p , moving in a potential that is time‐independent, but can vary in space. We will follow four steps:

Define the Hamiltonian by defining the Potential Energy Operator since H ^ = - ħ 2 2 m p ∇ ^ 2 + V ^ ( r ) $\hat{H} = - \frac{{{\hbar}^{2} }}{{2m_{p} }}\hat{\nabla }^{2} + \hat{V}(r)$ https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9781315381381/fbc2c269-f5ee-4e6a-83ad-0fb13faed8c5/content/inline-math4_1.tif"/> .

Solve the TISE to get the wave functions ψ ( x , y , z ) $\psi (x, y, z)$ https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9781315381381/fbc2c269-f5ee-4e6a-83ad-0fb13faed8c5/content/inline-math4_2.tif"/> and then the total stationary state wave functions Ψ ( x , y , z ; t ) = ψ ( x , y , z ) e - i ω t . $\iPsi (x, y, z;t) = \psi (x, y, z)e^{ - i\omega t} .$ https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9781315381381/fbc2c269-f5ee-4e6a-83ad-0fb13faed8c5/content/inline-math4_3.tif"/>

Determine the energies of the various states of the system.

Examine the implications of the solutions to the Schrödinger equations.