The full scripts presented in this post are available at these links: MATLAB, Python With the first postulate of quantum mechanics, we learnt that everything there is to know about a quantum system is encapsulated in the wave function . But so far, the wave function is sort of a black box and we still […]

This post presents the last of the six postulates of quantum mechanics. Up to now, we have seen how a quantum mechanical state is defined, what is the outcomes of measurements on such systems, and how measurements affect them. The sixth postulate determines how quantum mechanical system evolve in time; it defines the equation of […]

The full scripts presented in this post are available at these links: MATLAB, Python In the previous post, we saw that for any state , measuring the observable can only result in one of the eigenvalues of the Hermitian operator associated with . We concluded by asking what could be the probability of measuring one […]

The full scripts presented in this post are available at these links: MATLAB, Python To develop the framework of quantum mechanics in the early 20th century, pioneer scientists had to question our knowledge about the world. They had to ask themselves what a measurement and an observer are, and how they interact. When Newton introduced […]

Hi reader, welcome to this post series on the postulates of quantum mechanics!  Have you ever followed classes on quantum mechanics? A common approach to presenting this fascinating topic is to first introduce the six postulates of quantum mechanics, one by one. Here, we intend to do something similar: each of the next six posts […]