coarse-graining

English

coarse-graining (countable and uncountable, plural coarse-grainings)

(sciences) The rescaling of a phenomenon into units or cells of size close to the uncertainty of measurement.
- 2005, James B. Hartle, “What Connects Different Interpretations of Quantum Mechanics?”, in Quo Vadis Quantum Mechanics?‎^[1], →ISBN, page 75:
  As human observers we focus almost entirely on coarse-grainings of this quasiclassical realm. However, quantum theory does not distinguish the classical realm from other decoherent sets...