The epistemology tag has no wiki summary.
3
votes
3answers
426 views
Is the wave function objective or subjective?
Here is a question I am curious about.
Is the wave function objective or subjective, or is such a question meaningless?
Conventionally, subjectivity is as follows: if a quantity is subjective then ...
0
votes
4answers
331 views
Is there anything physically infinite?
I can't think of a single thing that could be infinite.
Because the universe is expanding, isn't it? But there is an ever-changing barrier, so why could there be anything infinite, both ...
19
votes
10answers
892 views
What is the difference between a measurement and any other interaction in quantum mechanics?
We've learned that the wave function of a particle collapses when we measure a particle's location. If it is found, it becomes more probable to find it a again in the same area, and if not the ...
15
votes
5answers
673 views
Is there a difference between observing a particle and hitting it with another particle?
First, let me state that I'm a lot less experienced with physics than most people here. Quantum mechanics was as far as I got and that was about 9 years ago, with no use in the meantime.
A lot of ...
1
vote
2answers
492 views
The quantum state can be interpreted statistically, again
Now there are two papers
The quantum state cannot be interpreted statistically
http://arxiv.org/abs/1111.3328
(It was discussed here the consecuences of this "no-go theorem")
And this one (two of ...
4
votes
5answers
808 views
Can a scientific theory ever be absolutely proven?
I personally cringe when people talk about scientific theories in the same way we talk about everyday theories.
I was under the impression a scientific theory is similar to a mathematical proof; ...
15
votes
10answers
878 views
Why can't the outcome of a QM measurement be calculated a-priori?
Quantum Mechanics is very successful in determining the overall statistical distribution of many measurements of the same process.
On the other hand, it is completely clueless in determining the ...
3
votes
3answers
484 views
Time travel and nuclear decay
Reading a previous closed question an interesting variation has come to my mind.
Suppose that time travel to the past was possible:
I wait for an atom to decay and measure the time, $t_{1a}$
I ...
