D-Branes on the Null-Brane
arXiv:hep-th/0211218 · doi:10.1088/1126-6708/2003/02/043
Abstract
We study D-branes in the null-brane background. Using the covariant formalism of the worldsheet theory, we construct the boundary states describing D-branes on the null-brane. From the cylinder amplitudes, we find that the D-branes with codimension zero or two have time-dependent effective tensions.
19 pages, 1 figure, lanlmac
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- Time-dependent Orbifolds and String Cosmology
- Comments on Cosmological Singularities in String Theory
- A Matrix Model for the Null-Brane
- Global Fluctuation Spectra in Big Crunch/Big Bang String Vacua
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