Recent content by tetraedro

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    Graduate What Is the Physical Meaning of the Torsion Tensor in General Relativity?

    torsion again I have another question about torsion, maybe someone can help me. I have been studying the Einstein-Cartan extension of general relativity and I have seen that apparently (as far as I know) no one reports the mathetical procedure one has to follow in order to derive the field...
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    Graduate What Is the Physical Meaning of the Torsion Tensor in General Relativity?

    What's the matter with the "answer"? Anyway, does someone know anything more about the issue I have exposed?
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    Graduate What Is the Physical Meaning of the Torsion Tensor in General Relativity?

    Thank you for the answer. I've read on the paper "General Relativity with torsion: Extending Wald's Chapter on Curvature", the following sentence: "...If T^{z} _{xy}>0 (where T^{z} _{xy} is the torsion tensor), parallel transport along the x direction will cause v (parallely transported...
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    Graduate Deriving Field Equations of Einstein-Cartan Theory from Hilbert Action

    I'm interested in the derivation of the field equations of Einstein-Cartan theory of gravity starting from the Hilbert action, but I can't find a book or an article which explicitly derives the equation satisfied by the torsion field using the variation of the action with respect to the spin...
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    Graduate What Is the Physical Meaning of the Torsion Tensor in General Relativity?

    Hi, I've been studying extensions of general relativity with the torsion tensor and I have been wondering about the following fact: what is the physical meaning of the three indices of this tensor? That is, do these three indices represent some directions in space? (For example, the translation...