Inverse square problem and so(2,1) symmetry in noncommutative space

Abstract

We study the quantum mechanics of a system with inverse square potential in noncommutative space. Both the coordinates and momentums are considered to be noncommutative, which breaks the original so(2,1) symmetry. The energy levels and eigenfunctions are obtained. The generators of the so(2,1) algebra are also studied in noncommutative phase space and the commutators are calculated, which shows that the so(2,1) algebra obtained in noncommutative space is not closed. However the commutative limit Θ,\barΘ\to 0 for the algebra smoothly goes to the standard so(2,1) algebra.

5 pages, Revised version

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