Year: 2025
Type: preprint
Abstract: A topological A-model constructed from $CP^{3|4}$ supertwistor variables is proposed for the $AdS_5\times S^5$ superstring. At zero $AdS$ radius, free N=4 d=4 super-Yang-Mills amplitudes are reproduced by topological amplitudes of the corresponding gauged linear sigma model where the closed superstring vertex operator for a trace of $k$ super-Yang-Mills fields is described by a boundary state with $k$ edges. After turning on a Fayet-Iliopoulis term in the sigma model with coefficient $R^2 =\sqrt{g_{YM}^2 N}$, the topological amplitudes are claimed to reproduce the 't Hooft expansion of perturbative super-Yang-Mills amplitudes. Finally, this topological A-model is related to the usual $AdS_5\times S^5$ superstring in the pure spinor formalism.
Source: arXiv (Cornell University)
Author: Berkovits, Nathan
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4415110437
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