What is plasma and BEC?

The plasma state is the 4^th state of matter. It has hot ionized gas, a gas into which sufficient energy is provided to free electrons from atoms or molecules and to allow both species i.e. ions or electrons to co-exist. It may not be seen widely in the earth but it is to believe that in the universe everything is made up of plasma.

BEC ( Bose-Einstein Condensate) is the 5^th state of matter of a dilute gas of bosons cooled to a temperature very close to absolute zero.

Under such conditions, a large fraction of bosons occupy the lowest quantum state, at which point macroscopic quantum phenomena become apparent.

 For example, Helium, they are amazingly cold, too close to 270^∘C or zero kelvin.

The main difference between plasma and Bose-Einstein condensate is that the plasma state contains a gas of ions and free electrons, whereas Bose-Einstein condensate contains a gas of bosons at low densities, which is cooled to a low temperature close to absolute zero.