The cosmic role of tachyon in the type 0 strings
arXiv:hep-th/0606023 · doi:10.1142/S0217732307025297
Abstract
We present a new class of solution to the ten-dimensional type 0 effective action. Given a generic potential of tachyon field, there exist phases where tachyon is either frozen at local extremals or free to propagate along flat directions. In the latter phase, a cosmology model is proposed where the tachyon plays the role of time.
10 pages, 2 figures, discussion and reference added