Recently I saw on NHK(Japanese TV channel) about this topic.
Bose-Einstein Condensation or BEC is a state of many atoms become as one big atom (Not exactly).
In the small world (Quantum world), an atom, an electron, a photon(light), or any small thing looks as a particle or a wave. In quantum world, things can not be exist or not exist. we cannot say it is there or not, UNTIL we observe. It is very strange, but it is true in quantum world.
I was thinking "It is strange, but it is small world. That is why it is strange." But now with this Bose-Einstein Condensation, we created about 1mm size quantum state. Bunch of atoms in very very cold temperture become as one becoming a "large particle". It acts as a wave.
It is hard to put in the words. So please check this site below.
You can experiment and see it happen.
http://www.colorado.edu/physics/2000/bec/
Quantum Theory fascinates me a lot.
Saturday, November 06, 2004
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