Curvature from spin |
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Authors: | Venzo de Sabbata C. Sivaram |
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Affiliation: | (1) Dipartimento de Fisica, Universit di Ferrara, Italy;(2) Indian Institute of Astrophysics, Bangalore, India;(3) Istituto de Fisica Nucleare, Sezione di Ferrara, Italy;(4) World Laboratory, Lausanne, Switzerland |
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Abstract: | We show that, considering the dislocation defect induced by torsion in spacetime, which behaves like a string with tension, we are lead also to defect angle and then to curvature of spacetime. The space with torsion and curvature is then equivalent to an elastic continuum which has undergone plastic deformations and, following Sakharov idea of the spacetime as a elastic continuum, we are lead to a gravitational constant, which occurs in the Einstein action, as the metrical elasticity of spacetime with the exact value without introducing any arbitrary cutoff, when also torsion is considered. |
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Keywords: | torsion dislocations curvature disclinations deficit angle gravitational constant |
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