You're very close! The state of matter that exists only at extremely low temperatures is called a Bose-Einstein condensate.

Let me explain:

* Bose-Einstein condensate (BEC) is a state of matter where separate atoms are cooled to near absolute zero (-273.15°C or -459.67°F).

* At these temperatures, the atoms lose their individual identities and act like a single entity, behaving like a wave rather than particles.

* This state was predicted by Satyendra Nath Bose and Albert Einstein in the 1920s.

So, while your answer was very close, the correct term is Bose-Einstein condensate, not just "Bose-Einstein."