Quantum Chemistry 4.1 - Postulates of Quantum Mechanics 1: Wavefunctions (Old Version)

[chsims]

The only reason I got through quantum mechanics is these videos! Thanks so much

[TMPChem]

Hi DynamicR g, can't respond to your comment directly, so responding here.

In general the wavefunction can be complex. The Born interpretation says that the absolute magnitude of the square of the wavefunction corresponds to the particle density at any given point in space. To calculate the absolute square magnitude we could square the wavefunction and then take its absolute value (real^2 + im^2)), or we could achieve the same result by the simpler operation of multiplying the wavefunction by its complex conjugate, which gives a single real number which is equal to the magnitude of the wavefunction squared. The latter method avoids the intermediate step of calculating the square of the wavefunction, which we don't need if the wavefunction is complex.

[Bravez]

Thank you so much, the wavefunction is realy complex and i realy can't understand it in english too much