Tube of (Circle F, D0, D2) Bound State in Melvin Background
arXiv:hep-th/0407230 · doi:10.1016/j.physletb.2004.08.044
Abstract
By using the Born-Infeld action we show that the circular fundamental strings, D2-branes and D0-branes could become a tubular bound state which is prevented from collapsing by the magnetic force in the Melvin background. However, if the ratio is larger then a critical value the tube will become unstable and collapse to zero radius. We make analyses to find the critical value and tube radius therein. The tube configurations we found are different from the well known tubular bound states of straight fundamental strings, D0 and D2-branes, which are supported by the angular momentum.
Latex 9 pages, perform new calculation to correct mistakes and draw new conclusion, title was changed