Part 1: Solution To The Measurement Problem

[MrPlaiedes]

Under a minute in and I've already seen two pairs of sandals. It's about to be a good physics talk...

[kallelundahl]

I enjoyed Rovelli’s speech about the measuring problem.
Rovelli’s solution is to replace the measuring problem with the general conception of “interaction.” In addition, values of measurements are relational, affirms Rovelli. Even in Rovelli’s model, the measuring problem remains “subjective” since relational, depending on relationships and not on objective measurements existing in the void.
Would you agree with the two following affirmations (mine)?
1. The measurement problem is the greatest problem in science.
2. What we call “the measurement problem” is synonymous with the conundrum of the role of the observer in science.

[alessandroc.]

Mom can we buy the Schrodinger equation?
Mom: no, we have the Schrodinger equation at home
The Schrodinger equation at home: 14:22

[david_porthouse]

The simplest true detector is two molecules of nitrogen tri-iodide, which can undergo a radical change in specific entropy when hit by an alpha particle. In a computer simulation we need an extra ingredient to destroy unitarity, and I would suggest adding tachyonic Brownian motion. The simulation will need to run in dozens of dimensions of configuration space and it may be some time before we get a computer powerful enough. Anyone who disagrees with TBM will have plenty of time to develop a rival idea.

In general the collapse of the wave function is a collective phenomenon which runs in exponential time. In the classical world the Von Karman vortex street is a collective phenomenon which runs in polynomial time, so it is not difficult to simulate on a computer.

[mann]

every time I watch these lectures they take forever to get to the point usually it's mixed with a history lesson and a few silly jokes and a lot of book sales.

[curtisp]

I like how they didn't even go into the many worlds interpretation.... because we all know that's insane. :)

[a.hardin]

Real solution: there is no measurement problem only an intuitive difficulty in accepting what QM and experiments tell us.

[QuicksilverSG]

What Rovelli is calling quantum "interaction" is what Bohm called entanglement. BM resolves the Copenhagen measurement problem by treating all such interactions as entanglement of the measuring device's conditional wave function (CWF) with that of the subsystem under observation. The CWF is calculated using the actual quantum configuration of the subsystem to determine the evolution of the wave function according to Schrodinger's equation. This produces the Bohmian pilot waves which probabilistically guide the entangled particles in accordance with Born's rule.

The reason the Copenhagen Interpretation cannot use this technique to resolve its measurement problem is because the actual configuration of the quantum subsystem is by definition undefined until after the waveform has "collapsed".

[dustinfrost]

Call me crazy, but if 1 day is 1/365.25, 1 hour is 1/24, then wouldn't "now" be 1/(age of the universe) AND the smallest possible unit of time. At that division, the particle is, in our current perception, tautologically the thing itself? The measurement problem looks to me like an unawareness that all reality, as we can know it, is measurement. The "problem" would seem to be an unawareness of the definition of frame outside of the measurement

[christophergame]

It is a conceptual mistake to try to interpret a quantum mechanical experiment as a "measurement". Instead, it is to be interpreted as an identification of a quantum state. The quantum states are parametrized by eigenvalues of dynamical variables.

[dorothyzabala]

Gosh i had to forward to the middle to get to the point.auch lengthy introduction.

[aaroncurtis]

Hey quantum epiphany junkies! Is it 3 a.m. and too much sativa is keeping you up?

[eddie]

Maybe they're just too stupid to put the name of the speakers anywhere 😕

[riadhalrabeh]

I think it is possible to resolve the problem this way. QM works not in the time domain but in the Fourier transform of this into a complex probability transform- the weight function with its phase and magnitude. Like transforming the real time domain signal into the frequency domain signal of (frequency) amplitude/magnitude and phase. So the real measurement is obtained by integration to go from the imaginary plane to the real measurement(time) domain.

[vectorshift]

Philosophers worry and talk talk talk about "the measurement problem". It causes no problem with actually using QM. They should try to figure out why they keep talking about a problem that doesn't exist.

[nurkleblurker]

At the end, Many Worlds advantage: Ask David. LOL

[parameshwarhazra]

Why...why should I shut up and calculate ???

[simple]

A machine has discrete parts understood according to their official positions. Like that? Now, how is the "probability" of their positions understood helpfully in practice? I think l learned something here. Next question...😄

[jessicamclellan]

What if we simplified it down and everyone is right with their own theories because they are in their own perspective which is the observed factor. So it's a resolving circle which means we know nothing but know everything simultaneously but it's impossible to feed thru due to the worlds splitting. I believe science and spirituality will finally meld. We live every life so we can grow as a conscious society. Yes there are infinite branches. Yes we can predict what we want thru the energy we give
We need to live every life to gain all the information we need. Yes it sounds crazy but every theory makes sense in its own way. We are all connected. ❤️

[GuyLakeman]

and what about reduction by fractal self similarity to see beyond teh Heisenberg fur and to touch the paw of the cat as long as the path has a fractal structure which first need to be defined