Anisotropic Null String Cosmologies

Details Anisotropic Null String Cosmologies Anisotropic Null String Cosmologies

1998-10-19

arxiv.org/abs/gr-qc/9810062v1

Mod.Phys.Lett. A13 (1998) 3169-3178

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, plain Tex

Scientific paper

10.1142/S0217732398003375

We study string propagation in an anisotropic, cosmological background. We solve the equations of motion and the constraints by performing a perturbative expansion of the string coordinates in powers of c^2, the world-sheet speed of light. To zeroth order the string is approximated by a tensionless string (since c is proportional to the string tension T). We obtain exact, analytical expressions for the zeroth and the first order solutions and we discuss some cosmological implications.

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