Quantum Physics

$λ = \frac{h}{p}$
$λ = \frac{h}{m v}$
$λ = \frac{h}{2 m K}$
$λ = \frac{h}{2 m q V}$
$- \frac{ℏ ^{2}}{2 m} \frac{d ^{2} ψ}{d x ^{2}} + V ψ = E ψ$
$i ℏ \partial ψ / \partial t = - \frac{ℏ ^{2}}{2 m} \partial^{2} ψ / \partial x^{2} + V ψ$
$P = \int ∣ ψ ∣^{2} d x$
$\int ∣ ψ ∣^{2} d x = 1$
$E_{n} = \frac{n ^{2} h ^{2}}{8 m L ^{2}}$
$ψ_{n} = \frac{2}{L} sin (\frac{nπ x}{L})$