Hello,
I was asking these exact questions for some time.
1) I won't tell you that the story had a happy ending when I chose physics, or more generally the thing I am passionate about, since I'm still studying. I just know for sure that I'd rather be passionate about what I do than be a rich...
Enigman,
I am also an undergraduate and I haven't acquired much prejudice yet! I hope to keep it that way, I never want to be too sure!
Thank you for your answer, but I think the impossibility of the absolute zero is not a practical difficulty, but an actual law of nature. If that is true...
Thank you, Enigman,
but if the absolute zero temperature cannot be reached (first law of thermodynamics) then the uncertainty principle would not be at risk even if the temperature was a measure of the energy of molecules, so based on the reason of "saving" the uncertainty principle alone I...
Drakkith,
Does that mean that if a body has absolute zero the particles composing it will be in the ground state which means they will still have some kinetic energy? If I understand correctly, this kinetic energy would be temperature and would raise the body temperature above absolute zero, right?
Bill,
This is exactly what i was looking for, thank you. It seems that things do act strange when they get so cold to keep the uncertainty principle. Do you have any idea why the viscosity becomes so low though? I mean how is it related to the whole topic? The only thing I can think of is that...
Bhobba,
But is it at least true that a very cold object would have a high uncertainty in position? I'm assuming that if the average root mean square speed is v for N particles, then no particle with mass m can have a momentum more than mvN, which would be very low for temperatures near 0 K.
I...
Hello,
I have recently studied that a quantum particle can't have a zero kinetic energy, as it would violate the uncertainty principle, so I thought of these questions that are related to the topic:
1- At very heigh energies the speed of a particle cannot be less than a certain amount, so...
Thank you, i figured the MWI is the Many Worlds Interpretation, and i didn't get what BM was, I have a question on this matter; Is Decoherence widely accepted among physicists?
I understand the whole baby universes hypothesis and the black hole information paradox...so we might be in a universe that started with a black hole, but how can we be living in a black hole? apparently the universe is not even close to the density of a black hole. I don't get the idea, someone...
The wikipedia article on Decoherence says that it doesn't attempt to solve the measurement problem, which makes sense given its definition there. Is that wrong?
What does "not normalizable" ential
the free particle's wave function is not normalizable...what does that mean??
I understand there are mathematical tricks to help, but i still don't understand why it is not normalizable? does that cast the whole statistical interpretation into doubt when it...
You assumed that (V1 +V2)=V1+V2 but in special relativity combining two velocities is different and it is in fact (V1+V2)= V1+V2/(1+V1V2/C2)
This gives C always when C is one of the two velocities since V+C/(1+VC/C)=C and so that means that no matter how fast you go C (the speed of light) will...