Quantum Origin Of Quantum Jumps: Breaking Of Unitary Symmetry Induced By Information Transfer In The Transition From Quantum To Classical

Measurements transfer information about a system to the apparatus and then, further on, to observers and (often inadvertently) to the environment. I show that even imperfect copying essential in such situations restricts possible unperturbed outcomes to an orthogonal subset of all possible states of the system, thus breaking the unitary s...更多