Quantum mechanics: how to use Everett theory practically

Among theories of the physical world, quantum mechanics remains a topic lively discussions on its so-called interpretation. For some it an open question to understand how deterministic equations this theory, as established long ago, may combine with fundamental uncertainty. We consider process spontaneous emission by atom interacting infinite number degrees freedom electromagnetic field. There is uncertainty in evolution photo-emission which was characterized Markovian using when decay due coupling vacuum The property leads us naturally describe classical Kolmogorov equation for probability parameter defining state atom. explain that Everett’s many-worlds interpretation weld together our description, and appears therefore consequence mechanics, solves case riddle describing random events.