Because it had not been experimentally confirmed.
Shortly, a Bose-Einstein condensate is a dilute gas of bosons at a temperature near 0 Kelvin.
A Bose-Einstein Condensate may be considered as a gas in which the particles have only one degree of freedom. But it is not the gas of familiar :solid, liquid, gas; trichotomoty. It is a different form of matter. Since it is already in the lowest energy form, it cannot be changed from that without altering its energy. That's the best I can do in unravelling.
1st state of matter- solid 2nd state of matter- liquid 3rd state of matter- gas 4th state of matter- plasma 5th state of matter- Bose Einstein condensate 6th state of matter - fermionic condensate 7th state of matter- thought to be Fermionic condensate
bose einstein condensate 5th fermionic condensate 6th
Matter can exist in three forms: solid, liquid, and gas. Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, and gases have neither a fixed shape nor volume.
There are infact two! In general plasma is not considered a "conventional" state of matter. Another that may be considered "unconventional" is a state known as a Bose-Einstein condensate. For more information on the states of matter, please see the related question.
The six phases of matter are solid, liquid, gas, plasma, Bose-Einstein condensate, and fermionic condensate. These phases represent different physical states of matter with unique properties and behaviors.
bose-einstein condensate
buse Einstein condensate
A Bose-Einstein condensate is a state of matter formed at very low temperatures where a group of boson particles collapse into their lowest quantum state. It exhibits unique properties like superfluidity and coherence, allowing for the study of quantum phenomena on a macroscopic scale. It was first predicted by Satyendra Nath Bose and Albert Einstein in the 1920s.
The nine states of matter include: solid, liquid, gas, plasma, Bose-Einstein condensate, supersolid, supersolid, superfluid fermionic condensate, and quark-gluon plasma. Each state of matter exhibits distinct physical properties based on the arrangement and movement of its particles.
Bose Einstein Condensate.