7 ms·
I am not a mathematician and I did not read the actual paper, so forgive me if I beclown myself with this question. Isn't this a nothingburger? How would you h
by thehardsphere 10y ago
I am not a mathematician and I did not read the actual paper, so forgive me if I beclown myself with this question.
Isn't this a nothingburger? How would you hit absolute zero anyway when the minimum joint uncertainty of any given particle's position and momentum must be greater than Planck's constant / 2?
- amelius 10y agoAlso, all the other particles in the universe will exert a force on the particle (through e.g. gravitation), which will probably result in (small) vibration of the the particle.
- timthelion 10y agoIt seems to me that uncertainty is more uncertain a theorum to base your beliefs about the universe on than entropy.
- thehardsphere 10y agoTrue perhaps, but we're relatively certain about uncertainty.
- AstralStorm 10y agoBasing it on entropy makes certain assumptions on topological properties of time and space though.
- contravariant 10y agoTemperature in this sense no longer has anything to do with kinetic energy. A quantum system at absolute zero would simply be in its ground state, which is perfectly possible. In open space you only run into problems that there's not a particularly clear minimum. You do run into some problems with quantum fluctuations which may or may not randomly add energy to the system, I guess that's what this new result is about.