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Doubled \alpha'-Geometry

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arxiv 1306.2970 v2 pith:RWXUFOGQ submitted 2013-06-12 hep-th

Olaf Hohm , Warren Siegel , Barton Zwiebach This is my paper · ORCID
classification hep-th
keywords alphacorrectionsstringtheoryalgebrafieldfieldsgauge
verification ladder T0 review T1 audit T2 compute T3 formal
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We develop doubled-coordinate field theory to determine the \alpha' corrections to the massless sector of oriented bosonic closed string theory. Our key tool is a string current algebra of free left-handed bosons that makes O(D,D) T-duality manifest. While T-dualities are unchanged, diffeomorphisms and b-field gauge transformations receive corrections, with a gauge algebra given by an \alpha'-deformation of the duality-covariantized Courant bracket. The action is cubic in a double metric field, an unconstrained extension of the generalized metric that encodes the gravitational fields. Our approach provides a consistent truncation of string theory to massless fields with corrections that close at finite order in \alpha'.

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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

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  2. The non-relativistic limit of HSZ Theory

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  3. Worldsheet Formalism for Decoupling Limits in String Theory

    hep-th 2023-11 unverdicted novelty 6.0 of 10

    Develops worldsheet sigma model for fundamental strings in critical type IIA limit showing nodal singularities and derives T-duality web unifying decoupling limits including ambitwistor and Carrollian strings.

  4. Mega-Space Current Algebra and Green-Schwarz Geometry in Heterotic String Theory

    hep-th 2026-07 conditional novelty 5.0 of 10

    A Poláček-Siegel mega-space current algebra with Lorentz and heterotic gauge sectors embeds Chern-Simons structures and yields a Green-Schwarz-like Bianchi identity from Jacobi identities, without the α′ tr(R∧R) term.

  5. The spectrum of the bosonic ambitwistor string revisited

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    The bosonic ambitwistor string spectrum is confined to the massless sector and contains the dilaton, metric, Kalb-Ramond field plus an extra vector, but is non-unitary.

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