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By application of the general twist-induced star-deformation procedure wetranslate second quantization of a system of bosons/fermions on a symmetricspacetime in a non-commutative language. The procedure deforms in a coordinatedway the spacetime algebra and its symmetries, the wave-mechanical descriptionof a system of n bosons/fermions, the algebra of creation and annihilationoperators and also the commutation relations of the latter with functions ofspacetime; our key requirement is the mode-decomposition independence of thequantum field. In a conservative view, the use of noncommutative coordinatescan be seen just as a way to better express non-local interactions of a specialkind. In a non-conservative one, we obtain a covariant framework for QFT on thecorresponding noncommutative spacetime consistent with quantum mechanicalaxioms and Bose-Fermi statistics. One distinguishing feature is that the fieldcommutation relations remain of the type "field (anti)commutator=adistribution". We illustrate the results by choosing as examples interactingnon-relativistic and free relativistic QFT on Moyal space(time)s.

On second quantization on noncommutative spaces with twisted symmetries