Biswas, Anindya K. ; Maharana, Jnanadeva (2000) The holography hypothesis in pre-big-bang cosmology with string sources Journal of High Energy Physics, 2000 (1). 020-020. ISSN 1126-6708
![]()
|
PDF
- Publisher Version
276kB |
Official URL: http://iopscience.iop.org/1126-6708/2000/01/020
Related URL: http://dx.doi.org/10.1088/1126-6708/2000/01/020
Abstract
The holographic ratio in pre-Big Bang string cosmology is obtained in the presence string sources. An iterative procedure is adopted to solve the equations of motion and derive the ratio in four dimensional world. First the zeroth order ratio is computed in the remote past, i.e. at t = -∞, then the holographic ratio is obtained taking into account the evolution of the backgrounds following the iterative procedure. The corrections to the zeroth order value of the ratio depends on the form of the initial number distribution of the strings chosen. Moreover, we estimate the holographic ratio in the recent past (i.e. when γ = -1/d) and in the remote past (i.e. when γ = 0), γ=p/varrho, in different dimensions in the Einstein frame and in the string frame. We find that in the first case it has similar time dependences in both the frames, especially in four dimensions the ratio is explicitly computed to be the same in the two cases, whereas for γ = 0 case the time dependence is different.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to Institute of Physics Publishing. |
Keywords: | Physics of the Early Universe; Models of Quantum Gravity; Superstring Vacua |
ID Code: | 19739 |
Deposited On: | 22 Nov 2010 12:00 |
Last Modified: | 17 May 2016 04:14 |
Repository Staff Only: item control page