“…Studies of physical systems in noncommutative space give a possibility to find influence of noncommutativity on their properties and to estimate the values of parameters of noncommutativity. Many physical problems were examined in the space, among them for example are harmonic oscillator [4,5,6,7,8,9,10,11,12] Landau problem [13,14,15,16], hydrogen atom [17,18,19,20,21,22,23,24,25,26,27,28,29,30,31], gravitational quantum well [32,33] classical systems with various potentials [34,35,36,37], manyparticle systems [17,18,38,39,40,41,42,43] and many others. At the same time it is important to study fundamental principles in noncommutative space, among them the weak equivalence principle.…”