#### Samo_phy

Hi everyone,

I was watching Susskinsd's lectures posted on youtube about Quantum mechanics and he started explaining his -1st basic law of physics saying: the conservation of information means basically that if you start with 2 quantum states (vectors) which are observably different, or mathematically speaking, the both vectors are orthogonal, and if you let both of them evolve then they will stay orthogonal. Meaning that if two states that are observably different will not evolve into states which are not observably different.

I only need a few physical examples to understand it better. Anyone?

I was watching Susskinsd's lectures posted on youtube about Quantum mechanics and he started explaining his -1st basic law of physics saying: the conservation of information means basically that if you start with 2 quantum states (vectors) which are observably different, or mathematically speaking, the both vectors are orthogonal, and if you let both of them evolve then they will stay orthogonal. Meaning that if two states that are observably different will not evolve into states which are not observably different.

I only need a few physical examples to understand it better. Anyone?

Last edited by a moderator: