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Answer for the clue "The act of dividing into quanta or expressing in terms of quantum theory ", 12 letters:
quantization

Word definitions for quantization in dictionaries

Wikipedia Word definitions in Wikipedia
Quantization , in mathematics and digital signal processing , is the process of mapping a large set of input values to a (countable) smaller set. Rounding and truncation are typical examples of quantization processes. Quantization is involved to some degree ...

Wiktionary Word definitions in Wiktionary
n. 1 (context uncountable signal processing English) The process of approximating a continuous signal by a set of discrete symbols or integer values. 2 (context countable physics English) A procedure for constructing a quantum field theory starting from ...

WordNet Word definitions in WordNet
n. the act of dividing into quanta or expressing in terms of quantum theory [syn: quantisation ]

Usage examples of quantization.

They seemed to be precisely directed, as if lased, and operated just above the background noise level, worked at frequencies designed to avoid photon quantization noise.

He and I have disagreed about the quantization of quasar red shifts, the explanation of superluminal light sources, the rest mass of the neutrino, quark physics in neutron stars.

Although the observational evidence has been there for twenty years, conventional astronomy has never really accepted that the redshifts are quantized, and has tried strenuously to find arguments to show that there is no quantization.