Comments about "Wave function collapse" in Wikipedia

This document contains comments about the article Wave function collapse in Wikipedia

In the last paragraph I explain my own opinion.

In quantum mechanics, wave function collapse is said to occur when a wave function—initially in a superposition of several eigenstates—appears to reduce to a single eigenstate due to interaction with the external world; this is called an 'observation'
Any observation involves a certain change in the outside world. The whole issue is to what extend observations can be described by means of mathematics specific by means of wave functions. To be more specific: by means of wave functions of elementary particle level.: It is the essence of measurement in quantum mechanics and connects the wave function with classical observables like position and momentum.
Measurements of elementary particles, which is part of quantum mechanics, is very difficult and almost every single measurement causes an interaction which what we want to measure. That means to measure the speed of an individual elementary particle is impossible.: Collapse is one of two processes by which quantum systems evolve in time; the other is continuous evolution via the Schrödinger equation.
All processes in the universe evolve in time. All processes are also quantum systems because elementary particles, are part of this. The concept collapse of a wave function is not part this. It is part of a mathematical description of the behaviour of a process if you want to measure the particle.

Following is a list with "Comments in Wikipedia" about related subjects

If you want to give a comment you can use the following form Comment form

Created: 11 January 2019

Go Back to Wikipedia Comments in Wikipedia documents
Back to my home page Index