Explanation

In quantum mechanics, the wave function $psi(x, t)$ describes the quantum state of a particle.

The probability density of finding the particle at a particular position in space is given by:

$$P(x) = |psi(x, t)|^2$$

This means:

• The square of the magnitude (or absolute value) of the wave function gives the probability per unit length (or volume) of finding the particle in that region.

• This principle is known as the Born interpretation.