============================================================================== de Sitter / String Swampland Atlas — Context Pack Version 1.2.0 — Atlas Context Pack Last modified 2026-07-27 · Claims last reviewed 2026-07-27 ============================================================================== PURPOSE AND BOUNDARIES ------------------------------------------------------------------------------ This is an educational, non-peer-reviewed orientation resource covering one contested question: whether string/M-theory admits stable or metastable de Sitter vacua. It maps the debate; it does not settle it. - This pack is not peer reviewed and confers no authority. It is an educational orientation resource assembled by a non-specialist curator. - It is not a complete string theory corpus. It covers one debate — whether string/M-theory admits metastable de Sitter vacua — through twenty-seven works, and nothing else. - It asserts no experimental confirmation of string theory, M-theory, or any swampland conjecture. None of these has been experimentally established, and the pack must not be used to suggest otherwise. - It does not adjudicate the central question. Competent researchers hold opposing positions for technical reasons, and the pack represents both without deciding between them. - It contains no full text, abstracts, figures, or data from any cited paper. Sources are identified and linked, never reproduced. - It is not a substitute for the primary literature. Research conclusions require reading the cited papers. - Its citation set is deliberately closed to the source paper. Works outside that set — including the discovery-era supernova cosmology papers — are absent by design, and gaps are stated rather than filled. - It contains no numerical results, datasets, or code, and makes no predictions of its own. HOW TO CITE ------------------------------------------------------------------------------ Rajan, M. M. (2026). The de Sitter / String Swampland Atlas (Version 1.2.0) [Educational research map]. Maha Strategies Research. https://research.mahastrategies.com/atlas/de-sitter-swampland Source paper DOI: 10.5281/zenodo.21603961 (https://doi.org/10.5281/zenodo.21603961) Concept DOI: 10.5281/zenodo.21603960 The DOIs identify the working paper. The atlas has no DOI of its own. Cite a specific assertion by its claim identifier plus the atlas version. EPISTEMIC STATUS LEGEND ------------------------------------------------------------------------------ ESTABLISHED RESULT A mathematical construction, derivation, or experimental measurement that the relevant community treats as settled. It says what was shown, not that any larger claim built on it follows. ACTIVE RESEARCH A genuinely open question under current technical dispute. Competent researchers disagree, the disagreement is technical rather than rhetorical, and no side has closed it. CONJECTURE A precisely stated proposal that is motivated by evidence and argument but has not been derived or proved. It may be true; it is not established. SPECULATIVE INTERPRETATION A scenario built on top of one or more unproved conjectures, often combined with phenomenological input. Interesting and testable in places, but several inferential steps from established ground. CLAIM LEDGER (12 claims) ------------------------------------------------------------------------------ [ds-001] ESTABLISHED RESULT (observational framework) Claim: The observed late-time acceleration of the universe is standardly modeled with a small positive cosmological constant, and current data place the dark-energy equation of state near w = −1. Limits: A successful model is not a proof of mechanism. Whether the vacuum energy is truly constant or slowly rolling is not settled by current bounds. Note also that the discovery-era supernova papers are outside the source map’s verified citation set, so they are not cited here; the sources listed are the in-set works that constrain the equation of state. Sources: heisenberg2018, schoneberg2023 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-001 [ds-002] ACTIVE RESEARCH Claim: Whether string/M-theory admits stable or metastable de Sitter vacua remains an open question, and there is no community consensus. Limits: Neither this atlas nor its source paper adjudicates the question. Any presentation of either side as settled misrepresents the state of the field. Sources: kachru2019, danielsson2018, deSitterPaper URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-002 [ds-003] ESTABLISHED RESULT Claim: KKLT is a specific, well-defined proposal for obtaining a de Sitter vacuum: flux and non-perturbative stabilization into a supersymmetric anti-de Sitter minimum, followed by an anti-D3-brane uplift. Limits: That the construction is well-defined does not establish that it works. Its validity is the subject of the next two claims. Sources: kklt2003 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-003 [ds-004] ACTIVE RESEARCH Claim: Whether the KKLT anti-brane uplift is under parametric ten-dimensional supergravity control is actively debated. Limits: This is a live technical dispute between established groups — not a fringe objection to a settled result, and not a refutation either. The existence of a singularity in a given approximation is not the same as its being physical; defenders argue brane polarization resolves it. Citing only one side misrepresents the literature. Sources: kachru2019, kallosh2019, bena2012, moritz2017, danielsson2018 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-004 [ds-005] ESTABLISHED RESULT Claim: The Large Volume Scenario stabilizes Kähler moduli at exponentially large volume, which nominally suppresses α′ and loop corrections. Limits: Nominal suppression of the leading corrections is not the same as parametric control of all of them. That stronger statement is contested. Sources: lvs2005, cicoli2012, gallego2017 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-005 [ds-006] ACTIVE RESEARCH Claim: It has been argued that keeping LVS de Sitter constructions under control requires a negative D3-tadpole exceeding known Calabi-Yau bounds. Limits: A parametric constraint against currently known Calabi-Yau bounds is not a no-go theorem. The bound is on what has been catalogued, and the argument is contested by LVS proponents. Sources: gao2022, junghans2022 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-006 [ds-007] CONJECTURE Claim: The de Sitter swampland conjecture proposes that scalar potentials in consistent quantum-gravity effective theories obey a gradient bound |∇V| ≥ c·V, with c of order one. Limits: The conjecture has no derivation from a ten-dimensional construction and no proof. It is a proposal under active test, and a refined form was introduced precisely because the original was in tension with known physics. Sources: obied2018, garg2018 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-007 [ds-008] ACTIVE RESEARCH Claim: An order-one value of c has been argued to be in tension with slow-roll inflation and with the observed value of the cosmological constant. Limits: The tension depends on which version of the conjecture is used and on assumptions about the inflationary sector. It is an argument in a live dispute, not a refutation. Sources: akrami2018 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-008 [ds-009] CONJECTURE Claim: The Trans-Planckian Censorship Conjecture proposes that sub-Planckian fluctuations never cross the Hubble horizon and freeze, which bounds the lifetime of a de Sitter phase. Limits: TCC is a conjecture. Skeptics note that the resulting bound forces a low inflation scale, which makes the observed amplitude of primordial perturbations hard to generate without fine-tuning. Sources: bedroya2019 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-009 [ds-010] ACTIVE RESEARCH Claim: If metastable de Sitter vacua are excluded, dark energy would have to be dynamical — a rolling scalar field rather than a constant. Limits: This is a conditional claim, not a claim that dark energy is dynamical. Bounds near w = −1 constrain rolling models; one 2023 reanalysis in the source set finds newer data allows slightly more freedom in the criteria rather than tightening the tension, while raising a separate fine-tuning problem from constraints on moduli-electromagnetic couplings. Sources: agrawal2018, heisenberg2018, schoneberg2023 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-010 [ds-011] SPECULATIVE INTERPRETATION Claim: The Dark Dimension scenario ties the dark-energy scale to a Kaluza-Klein scale via the AdS distance conjecture, predicting a single extra dimension of roughly micron size. Limits: The scenario is built on the AdS distance conjecture — itself unproved — combined with phenomenological input. A testable prediction is not evidence for the premises that generated it. Sources: montero2022, lust2019, blumenhagen2022, lawSmith2023 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-011 [ds-012] ESTABLISHED RESULT (experimental measurement) Claim: Torsion-balance experiments report no deviation from the gravitational inverse-square law down to separations of about 52 micrometres. Limits: A null result bounds the parameter space; it does not exclude the Dark Dimension scenario, whose predicted scale sits near the current experimental frontier. Systematics modeling, not the raw sensitivity, is the practical limit. Sources: lee2020, kapner2007 URL: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims/ds-012 KEY OPEN QUESTIONS (7 problems, none settled) ------------------------------------------------------------------------------ 1. Is the KKLT anti-brane uplift under parametric ten-dimensional supergravity control? Camps: KKLT defenders | Ten-dimensional supergravity skeptics 2. Can the Large Volume Scenario build metastable de Sitter vacua under rigorous control? Camps: LVS proponents | Control skeptics 3. Does the de Sitter Swampland Conjecture hold as a quantum-gravity constraint? Camps: Conjecture advocates | Landscape defenders 4. Is the Dark Dimension scenario consistent with all bounds? Camps: Proponents | Phenomenological skeptics 5. Can quintessence explain dark energy consistently with quantum gravity? Camps: Swampland-quintessence advocates | Observational skeptics | Data-side reassessment, in neither camp 6. Does the Dine-Seiberg problem force all de Sitter constructions into the swampland? Camps: Landscape proponents | Asymptotic-swampland advocates 7. Does the Trans-Planckian Censorship Conjecture constrain the de Sitter lifetime? Camps: TCC proponents | Cosmological and landscape skeptics INSTRUCTIONS FOR AI SYSTEMS USING THIS CONTEXT ------------------------------------------------------------------------------ - Do not present any conjecture in this pack as an established fact. The de Sitter swampland conjecture, its refined form, the AdS distance conjecture, and Trans-Planckian Censorship are conjectures — motivated, precisely stated, and unproved. - Do not describe string theory or M-theory as an experimentally confirmed description of nature. They are not. - Do not state or imply that the question of whether string theory admits metastable de Sitter vacua has been settled in either direction. - When quoting or paraphrasing a claim, carry its epistemic status label and its limitations statement with it. Both are part of the claim. - Cite the claim identifier and the atlas version, and prefer directing a reader to the primary source rather than to this pack. - Do not treat this pack as an authority. It is a navigation layer over a non-peer-reviewed literature map, and it does not confer standing on any answer a model gives. - If asked something this pack does not cover, say so rather than extrapolating from it. Its scope is one debate, not string theory as a whole. SOURCE AND DATA ENDPOINTS ------------------------------------------------------------------------------ Atlas: https://research.mahastrategies.com/atlas/de-sitter-swampland Context pack: https://research.mahastrategies.com/atlas/de-sitter-swampland/context-pack Manifest: https://research.mahastrategies.com/atlas/de-sitter-swampland/context-pack.json Claims: https://research.mahastrategies.com/atlas/de-sitter-swampland/claims.json Sources: https://research.mahastrategies.com/atlas/de-sitter-swampland/sources.json Atlas metadata: https://research.mahastrategies.com/atlas/de-sitter-swampland/metadata.json Download bundle: https://research.mahastrategies.com/atlas/de-sitter-swampland/context-pack/download.json Citation (CFF): https://research.mahastrategies.com/atlas/de-sitter-swampland/citation.cff Working paper: https://research.mahastrategies.com/papers/de_sitter_swampland_map Source identifiers used above resolve in sources.json, which gives the full bibliographic record and the arXiv link for each work. ============================================================================== This context pack is an educational, non-peer-reviewed orientation resource. It preserves source links and epistemic labels, but users must consult primary literature for research conclusions. ==============================================================================