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Sharp boundaries for the swampland

Canonical reference. 88% of citing Pith papers cite this work as background.

16 Pith papers citing it
Background 88% of classified citations

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2026 12 2025 4

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representative citing papers

Thermal Positivity

hep-th · 2026-06-03 · unverdicted · novelty 7.0

Lorentz invariance and unitarity imply strictly positive low-temperature interaction corrections of the form T^{2D-4+4k} (k>0) to the pressure in perturbative massless boson theories.

Analytic Bootstrap of the Veneziano Amplitude

hep-th · 2026-05-11 · unverdicted · novelty 7.0 · 2 refs

The Veneziano amplitude is the unique solution to a dual bootstrap from dispersive sum rules interpreted as moments, unitarity, and string monodromy or splitting conditions.

On the Asymptotic Causal Structure in Gravitational EFTs

hep-th · 2026-04-30 · accept · novelty 7.0

In D>4, gravitational EFTs with higher-derivative operators allow asymptotic superluminality around black holes, but in D=4 the asymptotic causal structure is identical to Schwarzschild and insensitive to corrections.

Negative running of gravitational positivity

hep-th · 2026-03-16 · unverdicted · novelty 7.0

Non-minimal three-point interactions induce negative one-loop running of Wilson coefficients in gravitational EFTs, yet graviton loops generate positive IR contributions that dominate the bounds after smearing if the species number is bounded.

Positivity with Long-Range Interactions

hep-th · 2025-12-15 · unverdicted · novelty 7.0

Defines IR-finite amplitudes M_E that preserve analyticity and unitarity to derive positivity bounds on EFTs including electromagnetism and gravity in D=4.

Primal S-matrix bootstrap with dispersion relations

hep-th · 2025-06-27 · unverdicted · novelty 7.0

A primal S-matrix bootstrap framework parameterizes imaginary parts of partial waves, uses dispersion relations to enforce consistency, computes coupling bounds, and handles Regge behavior plus spinning states like glueballs.

An Ultraviolet Finite Theory of Scalars

hep-ph · 2026-06-24 · unverdicted · novelty 6.0

A ghost-free polynomially bounded scalar theory with momentum-dependent interactions that cancels all loop divergences to all orders, with finite one-loop self-energy and beta function computed, plus a variant with zero mass renormalization.

A Dispersive Bootstrap for the Virasoro-Shapiro Amplitude

hep-th · 2026-06-17 · unverdicted · novelty 6.0

Dispersive bootstrap with unitarity, crossing and a Virasoro-inspired ansatz isolates the Virasoro-Shapiro amplitude in a small island for the gravity-pole-subtracted four-point amplitude in 10D supersymmetry.

Where is tree-level heterotic string theory?

hep-th · 2026-06-08 · unverdicted · novelty 6.0

Bootstrap constraints on 10D half-maximal supergravity and SYM show gravitational boundaries dominated by single linear Regge trajectory amplitudes, with representation positivity tensions obstructing direct gauge-gravity normalization in the gluon sector.

Multipositivity Constrains the Chiral Lagrangian

hep-th · 2026-05-20 · unverdicted · novelty 6.0

Multipositivity bounds derived from planar tree-level scattering amplitudes constrain Wilson coefficients of the chiral Lagrangian from below by the chiral anomaly.

The Equivalence Principle at High Energies Completes the Spectrum

hep-th · 2026-05-19 · unverdicted · novelty 6.0

Tree-level gravitational scattering under the equivalence principle mandates single-particle states in all irreducible representations constructible from a single seed charge, with equal interaction strengths.

citing papers explorer

Showing 16 of 16 citing papers.

  • Positivity in Massive Spin-3/2 EFTs and the Planck-Suppressed Neighbourhood of Supergravity hep-th · 2026-05-11 · unverdicted · none · ref 24 · 2 links

    Massive spin-3/2 EFT contact couplings are constrained by positivity to a Planck-suppressed neighborhood of supergravity values whose volume scales as m^6/M_Pl^6 and vanishes as m approaches zero.

  • Thermal Positivity hep-th · 2026-06-03 · unverdicted · none · ref 7

    Lorentz invariance and unitarity imply strictly positive low-temperature interaction corrections of the form T^{2D-4+4k} (k>0) to the pressure in perturbative massless boson theories.

  • Analytic Bootstrap of the Veneziano Amplitude hep-th · 2026-05-11 · unverdicted · none · ref 19 · 2 links

    The Veneziano amplitude is the unique solution to a dual bootstrap from dispersive sum rules interpreted as moments, unitarity, and string monodromy or splitting conditions.

  • On the Asymptotic Causal Structure in Gravitational EFTs hep-th · 2026-04-30 · accept · none · ref 30

    In D>4, gravitational EFTs with higher-derivative operators allow asymptotic superluminality around black holes, but in D=4 the asymptotic causal structure is identical to Schwarzschild and insensitive to corrections.

  • Full positivity bounds for anomalous quartic gauge couplings in SMEFT hep-ph · 2026-03-31 · unverdicted · none · ref 53

    Complete positivity bounds for the 22 aQGC coefficients in SMEFT restrict the viable parameter space to approximately 0.0313% of the naive total.

  • Negative running of gravitational positivity hep-th · 2026-03-16 · unverdicted · none · ref 25

    Non-minimal three-point interactions induce negative one-loop running of Wilson coefficients in gravitational EFTs, yet graviton loops generate positive IR contributions that dominate the bounds after smearing if the species number is bounded.

  • Positivity with Long-Range Interactions hep-th · 2025-12-15 · unverdicted · none · ref 31

    Defines IR-finite amplitudes M_E that preserve analyticity and unitarity to derive positivity bounds on EFTs including electromagnetism and gravity in D=4.

  • Analytic structure of the high-energy gravitational amplitude: multi-H diagrams and classical 5PM logarithms hep-th · 2025-11-14 · unverdicted · none · ref 40

    Computes the leading double logarithm at 5PM in the high-energy gravitational amplitude via multi-H diagrams and dispersion relations, extracting the single-log imaginary part of the eikonal phase.

  • Primal S-matrix bootstrap with dispersion relations hep-th · 2025-06-27 · unverdicted · none · ref 49

    A primal S-matrix bootstrap framework parameterizes imaginary parts of partial waves, uses dispersion relations to enforce consistency, computes coupling bounds, and handles Regge behavior plus spinning states like glueballs.

  • An Ultraviolet Finite Theory of Scalars hep-ph · 2026-06-24 · unverdicted · none · ref 20

    A ghost-free polynomially bounded scalar theory with momentum-dependent interactions that cancels all loop divergences to all orders, with finite one-loop self-energy and beta function computed, plus a variant with zero mass renormalization.

  • A Dispersive Bootstrap for the Virasoro-Shapiro Amplitude hep-th · 2026-06-17 · unverdicted · none · ref 23

    Dispersive bootstrap with unitarity, crossing and a Virasoro-inspired ansatz isolates the Virasoro-Shapiro amplitude in a small island for the gravity-pole-subtracted four-point amplitude in 10D supersymmetry.

  • Where is tree-level heterotic string theory? hep-th · 2026-06-08 · unverdicted · none · ref 4

    Bootstrap constraints on 10D half-maximal supergravity and SYM show gravitational boundaries dominated by single linear Regge trajectory amplitudes, with representation positivity tensions obstructing direct gauge-gravity normalization in the gluon sector.

  • Multipositivity Constrains the Chiral Lagrangian hep-th · 2026-05-20 · unverdicted · none · ref 57

    Multipositivity bounds derived from planar tree-level scattering amplitudes constrain Wilson coefficients of the chiral Lagrangian from below by the chiral anomaly.

  • The Equivalence Principle at High Energies Completes the Spectrum hep-th · 2026-05-19 · unverdicted · none · ref 23

    Tree-level gravitational scattering under the equivalence principle mandates single-particle states in all irreducible representations constructible from a single seed charge, with equal interaction strengths.

  • Sampling the Graviton Pole and Deprojecting the Swampland hep-th · 2026-04-16 · unverdicted · none · ref 21

    A sampling-based bootstrap for graviton poles in EFTs yields non-projective bounds that fix the EFT cutoff scale relative to the Planck mass, with M/M_P ≲ 7.8 in D=5.

  • Positivity bounds from thermal field theory entropy hep-th · 2025-09-08 · unverdicted · none · ref 21

    Thermodynamic consistency in thermal scalar EFTs requires the Wilson coefficient of the leading dimension-8 operator to be strictly positive.