ar X iv : h ep - t h / 96 05 00 7 v 1 2 M ay 1 99 6 SFU - HEP - 04 - 96 String Theory In Curved Space - Time

نویسندگان

  • K. S. Viswanathan
  • R. Parthasarathy
چکیده

Intrinsic and extrinsic geometric properties of string world sheets in curved space-time background are explored. In our formulation, the only dynamical degrees of freedom of the string are its immersion coordinates. Classical equation of motion and the space-time energy-momentum tensor of the string are obtained. The equations of motion for the extrinsic curvature action are second order for the scalar mean curvature of the world sheet. 1-loop divergent terms are calculated using the background field method. Asymptotic freedom of the extrinsic curvature coupling is established.

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تاریخ انتشار 1996