Abdelouahab, Mohamed. Bahache, Fouad2019-07-142019-07-142019-07-01http://dspace.univ-msila.dz:8080//xmlui/handle/123456789/14965In this work, of master memory, in theoretical physics, (2018/2019), we have studied the Schrödinger equation with new modified Cornell potential by the temperate and the relative distance between quark and antiquark in noncommutative two dimensional spaces and phases by applying the Bopp's shift method to first order in the noncommutative parameters (, ), instead of using the star product method. The corrections of energy levels obtained by applying standard perturbation theory for quarkonium systems, it has been observed that the obtained energy spectra was changed radically, and replaced by degenerate new states, depending on the discrete quantum atomic number m , these results produced from self-Zeeman effectfrStar product, noncommutative space and phase, Cornell potentialThesis