Abstract
The state of superstring perturbation theory is reviewed with an emphasis on the state of the pure spinor superstring perturbation theory. We begin with a brief summary of the state of perturbation theory in the Ramond–Neveu–Schwarz and in the Green–Schwarz formulations of the superstring. Then we proceed to a quick review of the minimal and non-minimal pure spinor formulations of the superstring and discuss the multi-loop amplitude prescriptions in each of them. We end with a summary and open questions.
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This is a contribution to the proceedings of the WE-Heraeus-seminar, Quantum gravity: challenges and perspectives, dedicated to the memory of John A. Wheeler.
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Adam, I. Superstring perturbation theory. Gen Relativ Gravit 41, 691–705 (2009). https://doi.org/10.1007/s10714-008-0745-y
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DOI: https://doi.org/10.1007/s10714-008-0745-y