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Ambitwistor superstring in the Green–Schwarz formulation

In this paper we construct the ambitwistor superstring in the Green–Schwarz formulation. The model is obtained from the related pure spinor version. We show that the spectrum contains only ten-dimensional supergravity and that kappa symmetry in a curved background implies some of the standard constraints.

Master symmetry in the AdS 5 × S 5 pure spinor string

We lift the set of classical non-local symmetries recently studied by Klose, Loebbert, and Münkler in the context of ℤ 2 cosets to the pure spinor description of the superstring in the AdS 5 × S 5 background.

Worldsheet dilatation operator for the AdS superstring

In this work we propose a systematic way to compute the logarithmic divergences of composite operators in the pure spinor description of the AdS 5 × S 5 superstring. The computations of these divergences can be summarized in terms of a dilatation operator acting on the local operators. We check our results with some important composite operators of the formalism.

Ambitwistor pure spinor string in a type II supergravity background

We construct the ambitwistor pure spinor string in a general type II supergravity background in the semi-classical regime. Almost all supergravity constraints are obtained from nilpotency of the BRST charge and further consistency conditions from additional world-sheet the case of AdS5 × S 5 background.

Non-minimal fields of the pure spinor string in general curved backgrounds

We study the coupling of the non-minimal ghost fields of the pure spinor superstring in general curved backgrounds. The coupling is found solving the consistency relations from the nilpotency of the non-minimal BRST charge.

AdS pure spinor superstring in constant backgrounds

Osvaldo Chandia 2 L. Ibiapina Bevilaqua 0 Brenno Carlini Vallilo 1 Open Access c The Authors. Article funded by SCOAP 0 Escola de Ciencias e Tecnologia, Universidade Federal do Rio Grande do Norte