On an approximate description of string and p-brane dynamics in curved space-time.

Details On an approximate description of string and p-brane dynamics in curved space-time. On an approximate description of string and p-brane dynamics in curved space-time.

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997tmp...111..714z&link_type=abstract

Theor. Math. Phys., Vol. 111, No. 3, p. 714 - 722

Mathematics

Logic

Cosmological Models

Scientific paper

A new formulation for the action of the Nambu-Goto string moving in curved space-time is studied. The action contains a two-dimensional "cosmological" world-sheet term multiplied by a tension parameter. It is shown that when treating this cosmological term as a perturbation, nonlinear equations for the string can be linearized. It is argued that in the zeroth-order approximation with respect to the tension, strings and membranes can be considered as dominant gravitation sources for the Friedmann universe with κ = 0.

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