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On the absence of BPS preonic solutions in IIA and IIB supergravities

Igor A. Bandos·Jose A. de Azcarraga·Oscar Varela
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Abstract

We consider the present absence of 31 out of 32 supersymmetric solutions in supergravity i.e., of solutions describing BPS preons. A recent result indicates that (bosonic) BPS preonic solutions do not exist in type IIB supergravity. We reconsider this analysis by using the G-frame method, extend it to the IIA supergravity case, and show that there are no (bosonic) preonic solutions for type IIA either. For the classical D=11 supergravity no conclusion can be drawn yet, although the negative IIA results permit establishing the conditions that preonic solutions would have to satisfy. For supergravities with `stringy' corrections, the existence of BPS preonic solutions remains fully open.

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Igor A. Bandos, Jose A. de Azcarraga, Oscar Varela. 2006-09-08. On the absence of BPS preonic solutions in IIA and IIB supergravities. https://doi.org/10.1088/1126-6708%2F2006%2F09%2F009

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