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Strings in gravity with torsion

Richard T. Hammond
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Abstract

A theory of gravitation in 4D is presented with strings used in the material action in $U_4$ spacetime. It is shown that the string naturally gives rise to torsion. It is also shown that the equation of motion a string follows from the Bianchi identity, gives the identical result as the Noether conservation laws, and follows a geodesic only in the lowest order approximation. In addition, the conservation laws show that strings naturally have spin, which arises not from their motion but from their one dimensional structure.

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Richard T. Hammond. 1999-04-14. Strings in gravity with torsion. https://doi.org/10.1023/a%3A1001942301598

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