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$\alpha'$-corrections and their double formulation

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arxiv 2108.12246 v2 pith:5IPXMSRH submitted 2021-08-27 hep-th gr-qc

Eric Lescano This is my paper
classification hep-thgr-qc
keywords theoryalphacorrectionsdoublelecturesstringaimedaugust
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The present notes are based on three lectures, each ninety minutes long, prepared for the school 'Integrability, Dualities and Deformations', that ran from 23 to 27 August 2021 in Santiago de Compostela and virtually. These lectures, aimed at graduate students, require only a basic knowledge of string theory. The main goal is to introduce $\alpha'$-corrections to the gravitational sector of different formulations of closed string theory and to reformulate them using novel techniques based on double field theory.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. $\alpha'$-Bootstrap

    hep-th 2026-07 conditional novelty 6.5 of 10

    An infinite-dimensional algebraic structure on a megaspace yields recursive, T-duality-covariant NS-NS α' and α'^{2} corrections matching known bosonic and heterotic results up to field redefinitions.

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    hep-th 2026-01 conditional novelty 6.0 of 10

    A metric-only, torsionless-connection formulation with fixed non-metricities rewrites the non-relativistic limit of bosonic supergravity covariantly and matches the vielbein string Newton-Cartan action at Lagrangian level.

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  4. The non-relativistic limit of HSZ Theory

    hep-th 2025-05 conditional novelty 6.0 of 10

    The non-relativistic limit of HSZ theory produces non-removable metric and b-field transformation corrections, and a finite four-derivative action requires field redefinitions before the limit.

  5. Carrollian bosonic supergravity at order $\alpha'$ and the universal cancellation of higher-curvature divergences

    hep-th 2026-07 conditional novelty 5.0 of 10

    Four-derivative and higher pure-gravitational α' corrections to bosonic supergravity admit a finite Carrollian limit, with an explicit action and a universal finiteness criterion for Riem^N terms.

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