{ "id": "cond-mat/0012208", "version": "v2", "published": "2000-12-12T18:02:45.000Z", "updated": "2000-12-14T11:57:15.000Z", "title": "Electrons on a sphere in disorder potential", "authors": [ "D. N. Aristov" ], "comment": "11 pages, REVTEX, 9 eps figures; references added to Sec.3", "categories": [ "cond-mat.mes-hall" ], "abstract": "We investigate, both analytically and numerically, the behavior of the electron gas on a sphere in the presence of point-like impurities. We find a criterion when the disorder can be regarded as small one and the main effect is the broadening of rotational multiplets. In the latter regime the statistics of one impurity-induced band is studied numerically. The energy level spacing distribution function follows the law P(s) ~ s exp(-a s^b) with 1