Anisotropic Null String Cosmologies
نویسندگان
چکیده
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, 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. † e-mail: [email protected], [email protected], [email protected], [email protected] Anisotropic Null String Cosmologies . . .
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