Immediately following that event, the universe was a cooling sea of subatomic particles, “a big pot of soup with quarks,” Dr Bashkanov said.
The new study by Dr Bashkanov and colleague Professor Daniel Watts suggest during this super early period of the universe, d-star hexaquarks could have cooled and expanded into what is known as a Bose-Einstein condensate (BEC).
A BEC is an exotic, fifth state of matter that forms when a cloud of atoms or subatomic particles cools to temperatures approaching absolute zero (-273.15 C or -459.67 F).
At these extreme temperatures, particles clump together into a single entity and behave like a single particle.
source: express.co.uk