Electrified fluctuations in D1⊥D3 and D1⊥D5 systems

We present the physical phenomenon of the subject discussed in the paper [J. Douari, A.H. Ali, Prog. Phys. 3 (2007) 26-32, hep-th/0610288]. In that paper we dealt with the fluctuations of funnel solutions of intersecting D1 and D3-branes and the electric field E was considered as very high value causing the results to be non-physical. In the present work, the variation interval of E is to be [0,1/lambda]. Then, we extend the study to discuss the overall transverse fluctuations of electrified funnel solutions of D1 perpendicular to D5 system in the flat background. The boundary conditions are found to be Neumann boundary conditions. (C) 2008 Elsevier B.V. All rights reserved.