Selnex
does the uncertainty principle suggest that activity occurs at a purely undeterministic level or simply that we cannot know both speed and position because of a lack of ability to figure it out
Originally posted by r637h
Is the "measure of uncertainty Planck's constant?
Not explained, formulated.Originally posted by Claude Bile The uncertainty principle can be explained mathematically purely in terms of the principles of Fourier series analysis.
This expression of wave-particle duality in the ontological terms warned against above leads to the kind of logical inconsistency that is avoided by thinking purely in terms of experimentally observed behaviour, which is thus the correct way to think about wave-particle duality, as I explained above.Originally posted by Claude Bile Instead of referring to a 'wave-particle duality', I like to think of particle behaviour as an aspect of wave behaviour. 'Particle' behaviour is still wave behaviour, it just follows particular laws we like to associate with the idea of a 'particle'.
And this is less confusing how?Originally posted by Claude Bile Thinking of it (and explaining) in this manner is less confusing than using the idea of duality, as it does not have any intuitive contradictions associated with it...
It's a fundamental fact that nature is undeterministic at the quantum level - not that we can't just measure things precisely.Originally posted by Selnex
does the uncertainty principle suggest that activity occurs at a purely undeterministic level or simply that we cannot know both speed and position because of a lack of ability to figure it out
But they do confuse things. How many papers, letters and articles have you seen, some by very credentialed people, where the issue was confused.Originally posted by AndersHermansson
Don't understand why people mess things up.
Uncertainty is not the same thing as indeterminism.
Originally posted by pmb
But what that does *not* mean is that when we measure the position of the light that we don't know what the momentum is. That's not true at all.
No.Originally posted by r637h
Did the Strong, Weak and Electromagnetic Forces exist before Planck Time?
Deterministic means initial conditions determine evolution. In particular, the shrodinger equation governs the evolution of wave functions in a completely deterministic way, and although the uncertainty principle raises a host of epistemological issues, it doesn't necessarily represent a breakdown of determinism.Originally posted by pmb
It's a fundamental fact that nature is undeterministic at the quantum level
That's classical statistical mechanics.Originally posted by pmb
...probability comes in with the statistical nature of the experiments. In each measurement I can know both the position and the momentum exactly. But when I do this experiment a huge number of times what happens is that we get a spectrum of different values and we use the table of measurements that we get and we calculate the quantities dx and dp which are calculated statistically.