2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/157877The representations of position and momentum operators of a planar phase space having both position and momentum noncommutativity are obtained. Using these representations the dynamics of a particle in a gravitational quantum well is studied to calculate the upper bounds of the noncommutative parameters.Talk given at 17th DAE-BRNS High Energy Physics Symposium (HEP06), Kharagpur, India, 11-15 Dec 2006. Appeared in the conference proceedingsHigh Energy Physics - Theorytext