20 Oct '07 16:49>
By Ketterly, who won a nobel prize for his work so you are getting this from the horses mouth. One of the great lectures in my opinion.
http://mitworld.mit.edu/video/77/
http://mitworld.mit.edu/video/77/
Originally posted by FabianFnasUnlikely in the extreme, since you have to be around 10 NANOkelvin to get it and you have special conditions on the material like it can't be a frozen liquid for instance, so it has to be gaseous at those temperatures so the chances of BEC's occurring naturally are about the same as the probability that I will spontaneously undergo fusion and light up the surrounding territory. So did you actually attend the lecture? It's not every day you get to hear one from a Nobel prize winner.
Is there any natural E-B condencate in universe? That's what I want to know...
Originally posted by sonhouseI'd have loved to hear his thoughts on how this fits in (or doesn't) with the multi-universe interpretation of quantum theory.
By Ketterly, who won a nobel prize for his work so you are getting this from the horses mouth. One of the great lectures in my opinion.
http://mitworld.mit.edu/video/77/
Originally posted by FabianFnasInteresting question. I wonder if there are some places in nature where bose-einstein behavior occurs due to high density rather than low temperature. The center of a star, or a neutron star, or perhaps the singularity of a black hole?
Is there any natural E-B condencate in universe? That's what I want to know...
Originally posted by leisurelyslothAs I understand it, Bose-Einstein condensates only occur at low temperatures because at low temperatures the particles can only take on a few energy states. High temperatures, even with extreme pressures, wouldn't duplicate this effect.
Interesting question. I wonder if there are some places in nature where bose-einstein behavior occurs due to high density rather than low temperature. The center of a star, or a neutron star, or perhaps the singularity of a black hole?
Originally posted by PBE6The underlying problem being the De Broglie wavelength has to be big enough to include several atoms. The higher the temp, the smaller the De Broglie wavelength, so it would be flat impossible no matter what the density. It is related to the momentum of particles or macroscopic masses too, but as the rest mass goes up, the wavelength goes WAY down:
As I understand it, Bose-Einstein condensates only occur at low temperatures because at low temperatures the particles can only take on a few energy states. High temperatures, even with extreme pressures, wouldn't duplicate this effect.