There is no "first" quantization

Abstract

The introduction of spinor and other massive fields by ``quantizing'' particles (corpuscles) is conceptually misleading. Only spatial fields must be postulated to form the fundamental objects to be quantized (that is, to define a formal basis for all quantum states), while apparent ``particles'' are a mere consequence of decoherence. This conclusion is also supported by the nature of gauge fields.

Published version -- 11 pages, no figures, Latex

References in corpus (1)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms

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• `Third' Quantization of Vacuum Einstein Gravity and Free Yang-Mills Theories