Achronon is a proposedquantum oftime, that is, a discrete and indivisible "unit" of time as part of ahypothesis that proposes thattime is not continuous. In simple language, a chronon is the smallest, discrete, non-decomposable unit of time.
In a one-dimensional model, a chronon is atime interval orperiod, while in ann-dimensional model it is a non-decomposable region inn-dimensional time.[citation needed]
While time is a continuous quantity in both standardquantum mechanics andgeneral relativity, some physicists have suggested that a discrete model of time might work, especially when considering the combination of quantum mechanics with general relativity to produce a theory ofquantum gravity.[citation needed]
The term was introduced in this sense by Robert Lévi in 1927.[1]
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