| Автор | Igor R. Klebanov |
| Автор | Juan Maldacena |
| Автор | Charles B. Thorn |
| Дата выпуска | 2006-04-01 |
| dc.description | The gluonic field created by a static quark anti-quark pair is described via the AdS/CFT correspondence by a string connecting the pair which is located on the boundary of AdS. Thus the gluonic field in a strongly coupled large N CFT has a stringy spectrum of excitations. We trace the stability of these excitations to a combination of large N suppressions and energy conservation. Comparison of the physics of the N = ∞ flux tube in the N = 4 SYM theory at weak and strong coupling shows that the excitations are present only above a certain critical coupling. The density of states of a highly excited string with a fold reaching towards the horizon of AdS is in exact agreement at strong coupling with that of the near-threshold states found in a ladder diagram model of the weak-strong coupling transition. We also study large distance correlations of local operators with a Wilson loop, and show that the fall off at weak coupling and N = ∞ (i.e. strictly planar diagrams) matches the strong coupling predictions given by the AdS/CFT correspondence, rather than those of a weakly coupled U(1) gauge theory. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Dynamics of flux tubes in large N gauge theories |
| Тип | paper |
| DOI | 10.1088/1126-6708/2006/04/024 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2006 |
| Первая страница | 24 |
| Последняя страница | 024 |
| Выпуск | 04 |
