String Theory and Emergent AdS Geometry in Higher Spin Field Theories

Abstract

We analyze the Weyl invariance constraints on higher spin vertex operators in open superstring theory describing massless higher spin gauge field excitations in d-dimensional space-time. We show that these constraints lead to low-energy equations of motion for higher spin fields in AdS space, with the leading order beta-function for the higher spin fields producing Fronsdal's operator in $Ad{S}_{d+1}$, despite that the higher spin vertex operators are originally defined in flat background. The correspondence between the $\beta$-function in string theory and $Ad{S}_{d+1}$ Fronsdal operators in space-time is found to be exact for $d=4$, while for other space-time dimensions it requires modifications of manifest expressions for the higher spin vertex operators. We argue that the correspondence considered in this paper is the leading order of more general isomorphism between Vasiliev's equations and equations of motion of extended open string field theory (OSFT), generalized to include the higher spin operators.

28 pages

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Cited by in corpus (2)

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