Pith. sign in

REVIEW 11 cited by

Effects of D-instantons

Not yet reviewed by Pith; the record is open.

Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv hep-th/9701093 v3 submitted 1997-01-20 hep-th

Michael B.Green (DAMTP , Cambridge , U.K.) , Michael Gutperle (DAMTP , U.K) This is my paper · ORCID
classification hep-th
keywords theoryd-instantond-instantonseffectsscatteringstringsupergravitysuperstring
0 comments
abstract

Scattering of fundamental states of type IIB supergravity and superstring theory is discussed at low orders in perturbation theory in the background of a D-instanton. The integration over fermionic zero modes in both the low energy supergravity and in the string theory leads to explicit nonperturbative terms in the effective action. These include a single instanton correction to the known tree-level and one-loop $R^4$ interactions. The `spectrum' of multiply-charged D-instantons is deduced by T-duality in nine dimensions from multiply-wound world-lines of marginally-bound D-particles. This, and other clues, lead to a conjectured SL(2,Z) completion of the $R^4$ terms which suggests that they are not renormalized by perturbative corrections in the zero-instanton sector beyond one loop. The string theory unit-charged D-instanton gives rise to point-like effects in fixed-angle scattering, raising unresolved issues concerning distance scales in superstring theory.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 11 Pith papers

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

  1. Wormholes and the imaginary distance bound

    hep-th 2026-05 unverdicted novelty 7.0 of 10

    Wormhole solutions with imaginary scalars set an Imaginary Distance Bound on analytic continuation of couplings, enforced by stringy effects that coincide with WGC and KSW in special cases.

  2. Symmetries of non-maximal supergravities with higher-derivative corrections

    hep-th 2026-03 unverdicted novelty 7.0 of 10

    Higher-derivative corrections explicitly break all hidden symmetry enhancements in the three-dimensional reductions of non-maximal supergravities.

  3. M\"obius randomness in the Hartle-Hawking state

    hep-th 2025-05 unverdicted novelty 7.0 of 10

    The Hartle-Hawking state for toroidal quantum cosmologies is expressed in the Langlands decomposition as a sum over zeta zeros whose near-singularity dynamics follow the Hilbert-Pólya Hamiltonian and as a Möbius avera...

  4. The Double EFT Expansion in Quantum Gravity

    hep-th 2025-01 conditional novelty 7.0 of 10

    Quantum gravity EFT actions organize higher-curvature corrections into a field-theoretic expansion suppressed by the lightest new mass and a quantum-gravitational expansion suppressed by the species scale.

  5. Non-holomorphic $S^{\prime}_{4}$ modular symmetry for leptons and leptogenesis

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    36 viable non-holomorphic S'4 modular models for leptons are identified via numerical scans, with two yielding successful unflavored thermal leptogenesis from the real part of τ while fitting neutrino data.

  6. Instanton-Induced Closed-String Amplitudes in Minimal Superstring Theory at Subleading Order

    hep-th 2026-06 unverdicted novelty 6.0 of 10

    Explicit computation of instanton-induced amplitudes in minimal superstring theories at subleading order, after regulating open-string degenerations with string field theory, yields exact agreement with DDK-KPZ scaling.

  7. Uniqueness of D=8 minimal supergravity with two vector multiplets

    hep-th 2026-05 unverdicted novelty 6.0 of 10

    Under a duality symmetry assumption, minimal supergravity coupled to two vector multiplets in D=8 is uniquely fixed in the BPS sector by anomaly cancellation, uplifts, and gauge enhancement.

  8. Type IIB at eight derivatives: Five-Point Axio-Dilaton Couplings

    hep-th 2025-07 conditional novelty 6.0 of 10

    The complete five-point, eight-derivative effective action of Type IIB in the gravity plus axio-dilaton sector is derived, with identical tree-level and one-loop kinematics and full SL(2,Z) modular completion.

  9. Exploring types I and IIA effective actions through T-duality

    hep-th 2024-12 conditional novelty 5.0 of 10

    T-duality between type I on S^1 and type I' on S^1/Z2 determines all leading two-derivative couplings in the untwisted sectors, reproducing standard type I and type IIA actions except the IIA Chern-Simons term.

  10. Lorentzian Regularization of the Type IIB Superstring Torus Vacuum

    hep-th 2026-06 unverdicted novelty 4.0 of 10

    A first direct regularized construction of the unprojected spin sectors of the Type IIB superstring torus vacuum is given via sector-resolved modular integrals.

  11. Black hole solutions in theories of supergravity

    hep-th 2024-12 unverdicted

    A review of the history of black hole solutions in supergravity, from early no-superhair theorems to attractor mechanics and alpha-prime corrections.

Pith tools