quantum jump

definition: a sudden large increase or advance
example: After the Internet became cheaper, there was a quantum jump in website development.
speech part: noun
synonyms: quantum leap
definition: an abrupt transition of an electron, atom, or molecule from one quantum state to another with the emission or absorption of a quantum
example: During the reaction the outermost electron underwent a quantum jump, which was monitored by the physicist.
speech part: noun
synonyms:

How quantum jump is being used?