All Questions
28 questions
4votes
4answers
443views
Solution to the measurement problem - explanation
Has the measurement problem been resolved? Could someone explain the current state-of-the-art understanding of why deterministic evolution results in a random measurement outcome? Is there a model ...
- 71
2votes
3answers
308views
Is the measurement problem an interpretation or practical problem?
According to Wikipedia: In quantum mechanics, the measurement problem is the problem of how, or whether, wave function collapse occurs. Is the measurement problem an interpretation problem or a ...
- 1,609
3votes
3answers
936views
Can gravity cause a wave function to collapse?
Assume the Copenhagen interpretation. Suppose that a particle, for example an electron, has a wavefunction. If a heavy object, like the Earth, is close by, then that object interacts with the electron ...
- 1,609
1vote
1answer
172views
Who caused first collapse of wave function?
With my wife we discuss a quantum theory and wonder whether a wave function could collapse without an observer - meaning a human/or any other living beings. If so we could make a conclusion that there ...
0votes
0answers
149views
What is an agent in the Quantum Bayesianism/Relational Quantum mechanics-like interpretations?
In interpretations like Quantum Basyesianism, Relational interpretation, Information Theory interpretation, etc, the wavefunction represents the probabilistic knowledge that an agent holds about a ...
- 6,847
0votes
1answer
266views
Have we actually verified the claim that macroscopic objects collapse wavefunctions?
Copenhagen interpretation claims this, but have we actually verified this? There exist two options: Objective collapse: Consider a large isolated box inside which there is a macroscopic classical ...
1vote
1answer
109views
Understanding the Measurement Problem - Is this a good analogy? [closed]
I have asked the question in a better way: Does Vantage Point explain Bell's Inequality's Experimental Results? This question may remain closed. It can be head-melting to conceive of many ...
- 11
20votes
11answers
4kviews
I'm not seeing any measurement/wave function collapse issue in quantum mechanics
The information about a particle is contained in a vector of unit-norm called the wave function. One postulates says that this wave function is supposed to evolve with time as the particle interacts ...
- 957
13votes
7answers
2kviews
What problem is the Many-Worlds Interpretation actually solving? Is it a reframing of the measurement problem?
Before I state my question I want to say I am in no way an expert/professional in this field. I read quite a bit on the subject and I consider myself familiar with the basic concepts but I really want ...
- 233
7votes
4answers
2kviews
Why is wave function collapse mysterious?
There are lots of questions and answers on this site about wave function collapse (for example, How does a Wavefunction collapse?, Why does a wavefunction collapse when observation takes place?, How ...
- 4,110
8votes
3answers
917views
Wigner's friend experiment - How is there an apparent paradox?
Wigner's friend thought experiment mentions that there is an apparent paradox - 'when exactly did the collapse occur?'. Whether it occurred when the friend made the measurement, or when Wigner asked ...
- 345
5votes
3answers
2kviews
Why is wave-function collapse still being taught in quantum mechanics? [closed]
I don't really understand why wave-function collapse is still being taught while we seem to have better interpretations of QM available nowadays. During the early development of quantum mechanics the ...
- 93
29votes
3answers
3kviews
Would every particle in the universe not have some form of measurement occurring at any given time? [duplicate]
I know this is probably a common point of confusion, but I have a specific question about measurements in Quantum Mechanics. I read an explanation on this, but still have a point of confusion. The ...
- 517
4votes
3answers
198views
Is there an objective asymmetry between a collapsed and un-collapsed wave function?
In a quantum double slit experiment, one starts at t0 with a wave function that propagates through two slits, interferes, and probabilities for various positions at the final stage at t1 can be ...
2votes
1answer
402views
Resource recommendation for interpretation of quantum mechanics?
The jumping of the quantum state to one of the eigenstates of $Q$ is the process referred to as state-vector reduction or collapse of the wave function (where $Q$ is an observable). I used to think ...
