The discussion revolves around the mathematical expression of wave function collapse in quantum mechanics, exploring how this process can be represented mathematically and the implications of such representations.
Participants express differing views on the nature of wave function collapse, with some agreeing on the suddenness of the change while others seek clarification on the underlying concepts, indicating that the discussion remains unresolved.
The discussion includes assumptions about the participants' familiarity with quantum mechanics concepts, particularly the density matrix, which may affect the clarity of the arguments presented.
It does not make sense, but still thanks ！anuttarasammyak said:Non- diagonal components of density matrix disappear. No process but a sudden change.
Agreed.Vanadium 50 said:What doesn't make sense? If you mean "I don't know what a density matrix is", that's fine, but then this thread should be B-level.
What doesn't make sense? That a number used to be non-zero and now it's zero? That's perfectly sensible. It happens all the time in physics. ("A ball is dropped from rest at a height h")george1962 said:I mean the “ sudden change”
See here for the basics:george1962 said:TL;DR Summary: What is the mathematical expression of the process of the wave functions collapsing?
People very often say the collapse of the wave functions in the discussion of quantum mechanics, then how to write this process in math form?