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False Vacuum

(apparent QM vacuum)

Quantum Mechanics includes the concept of a False Vacuum: vacuum in Quantum mechanics indicates the lowest possible state of energy, and a false vacuum is a state of energy that "seems" lowest in that there is no lower state within "interaction" reach. If the false vacuum has the opportunity to interact with a True Vacuum, the false vacuum exhibits a negative pressure in relation to the true vacuum, causing it to rapidly shrink.

Some theories of Inflation, including the original one, suppose it to be such an interaction involving a false vacuum present just after the Big Bang.

(physics,quantum mechanics,cosmology)