boon 1. n. 1. A benefit bestowed, especially one bestowed in response to a request. 2. A timely blessing or benefit: A brisk breeze is a boon to sailors. [Middle English.
Quantum leaps are the sole cause of the emission of electromagnetic radiation, including light, which occurs in the form of quantized units called photons. Ironically, when laymen use the term colloquially, they use it to describe large jumps in progress, when in reality a quantum leap is a very small change of state.
quantum state. n. (Atomic Physics) physics a state of a system characterized by a set of quantum numbers and represented by an eigenfunction. The energy of each state is precise within the limits imposed by the uncertainty principle but may be changed by applying a field of force. States that have the same energy are called degenerate.