%0 Journal Article %T alpha^star-Cohomology and Classification of Translation-Invariant Non-Commutative Quantum Field Theories %A Amir Abbass Varshovi %J Physics %D 2012 %I arXiv %X Translation-invariant products are studied in the setting of alpha^star-cohomology. It is explicitly shown that all quantum behaviors including the Green's functions and the scattering matrix of translation-invariant non-commutative quantum field theories are thoroughly characterized by alpha^star-cohomology classes of the star products. %U http://arxiv.org/abs/1210.0695v2