Excited D-branes and supergravity solutions
Jun, 200529 pages
Published in:
- Int.J.Mod.Phys.A 21 (2006) 1503-1528
e-Print:
- hep-th/0506221 [hep-th]
Report number:
- RESCEU-11-05,
- RIKEN-TH-47
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Abstract:
We investigate the general solution with the symmetry ISO(1,p)xSO(9-p) of Type II supergravity (the three-parameter solution) from the viewpoint of the superstring theory. We find that one of the three parameters (c_1) is closely related to the ``dilaton charge'' and the appearance of the dilaton charge is a consequence of deformations of the boundary condition from that of the boundary state for BPS D-branes. We give three examples of the deformed D-branes by considering the tachyon condensation from systems of D-\bar{D}p-branes, unstable D9-branes and unstable D-instantons to the BPS saturated Dp-branes, respectively. We argue that the deformed systems are generally regarded as tachyonic and/or massive excitations of the open strings on Dp-\bar{D}p-brane systems.- Supergravity solutions
- non-BPS D-branes
- tachyon condensation
- string model
- supersymmetry
- field equations: solution
- membrane model: D-brane
- membrane model: p-brane
- soliton: BPS
- symmetry: ISO(1,N) x SO(M)
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