| Автор | Valtancoli, P |
| Дата выпуска | 2005-06-07 |
| dc.description | We solve (2 + 1) non-commutative gravity coupled to point-like sources. We find continuity with Einstein gravity since we recover the classical gravitational field in the θ → 0 limit or at a large distance from the source. Our non-commutative solution inherits from the classical case a limitation on the mass parameter which is, however, twice that expected. Since the distance is not gauge invariant, the measure of the deficit angle near the source is intrinsically ambiguous, with the gauge group playing the role of a statistical ensemble. Einstein determinism can be recovered only at a large distance from the source, compared with the scale of the non-commutative parameter . |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2005 IOP Publishing Ltd |
| Название | (2 + 1) non-commutative gravity and conical spacetimes |
| Тип | paper |
| DOI | 10.1088/0264-9381/22/11/009 |
| Electronic ISSN | 1361-6382 |
| Print ISSN | 0264-9381 |
| Журнал | Classical and Quantum Gravity |
| Том | 22 |
| Первая страница | 2049 |
| Последняя страница | 2060 |
| Аффилиация | Valtancoli, P; Dipartimento di Fisica, Polo Scientifico Universitá di Firenze and INFN, Sezione di Firenze (Italy), Via G Sansone 1, 50019 Sesto Fiorentino, Italy |
| Выпуск | 11 |
