(adsbygoogle = window.adsbygoogle || []).push({}); What role does "torsion'' play in string theory?

In general relativity we assume that connection is torsion free. However from a purely geometrical viewpoint, the concept of torsion can not be ignored (theoretically) and in string theory, it is said that "torsion" does play its role. Can anybody tell what consequences arise if torsion is taken into account?

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# What role does torsion'' play in string theory?

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