Associators for AdS string amplitude building blocks
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DOI: 10.1007/jhep07(2025)278
Abstract: We show that building blocks for open- and closed-string amplitudes on AdS are generated by the Drinfeld and Deligne associator, respectively. Our formalism lifts the known associator recursions for flat-space string amplitudes to the AdS… read more here.
Keywords: building; building blocks; associators ads; string amplitude ... See more keywords
Tension between string amplitude prescriptions with presumed spacetime supersymmetry
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DOI: 10.1007/jhep11(2025)118
Abstract: We analyze an alternative prescription for computing tree level scattering amplitudes in the pure spinor superstring. Proposed by Berkovits, and inspired by an earlier work by Lee and Siegel, it bypasses the traditional ghost number… read more here.
Keywords: tension string; prescriptions presumed; amplitude prescriptions; string amplitude ... See more keywords