Question

What is Bose-Einstein Condensate?

Answer 1

Bose-Einstein condensate (BEC), a state of matter in which separate atoms or subatomic particles, cooled to near absolute zero (0 K, − 273.15 °C, or − 459.67 °F; K = kelvin), coalesce into a single quantum mechanical entity—that is, one that can be described by a wave function—on a near-macroscopic scale. This form of matter was predicted in 1924 by Albert Einstein on the basis of the quantum formulations of the Indian physicist Satyendra Nath Bose.

Answer 2

Whats single quantum mechanical entity?

Answer 3

well.. its like.. crudely speaking.. U and i are different beings.. but imagine.. us being one.. when i mean one i mean ONE BEING.. we breath the same, we think the same ..

thats like being one quantum mechanical entity.. or thats the way i understand it :P

every matter in the universe can be defined using quantum numbers.. every electron, every proton
so u choose any two electrons in this universe right now.. they ll have some quantum mechanical properties to be different.. this is basically the paulis exclusion principle..

now if i say that these two electrons coaelse and become one.. it means.. they ll have the same quantum mechanical characteristics..

if u have watched DBZ.. its like fusion :P!

Answer 4

Do you know what a "wave function" is in quantum mechanics?

Either way, something that is on a non-quantum mechanical having single "quantum mechanical entity" is an incredible thing. Something that is a "single quantum mechanical entity" means that every atom that's in the "state" of being a superfluid is **completely indistinguishable** from every other - it's defined by the same wavefunction. It's a HIGHLY ordered state that gives rise to really cool behaviors such as ZERO viscosity and near perfect thermal conductivity.

Answer 5

@Mashy DBZ reference FOR THE WIN!! Gotenks superfluid.

Answer 6

lolz :D !!

Answer 7

I KIND of got it now..thanks :)