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Instabilities in scale-separated Casimir vacua

T0 review · 2 major / 2 minor · reviewed 2026-05-19 · grok-4.3

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Pith's one-line read Casimir energy stabilized scale-separated AdS geometries are unstable to deformations.

desk verdict The paper finds that Casimir-stabilized Ricci-flat compactifications in 11d supergravity produce scale-separated AdS vacua with both perturbative tachyons and non-perturbative instabilities. read the letter →

arxiv 2507.17802 v2 submitted 2025-07-23 hep-th

Miquel Aparici , Ivano Basile , Nicolò Risso This is my paper · ORCID
classification hep-th
keywords CasimirenergyscaleseparationAdSvacuainstabilitiesfluxcompactificationsRicci-flatmanifoldssupergravity
checked against Cost.FunctionalEquationalexander_duality_circle_linking
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

This paper examines an alternative route to anti-de Sitter geometries with parametric scale separation between external and internal dimensions. Instead of balancing fluxes against internal curvature as in standard Freund-Rubin setups, the construction uses Casimir energy from quantum fields on Ricci-flat internal manifolds to fix the internal volume. The authors construct such vacua, including an explicit example in eleven-dimensional supergravity, then demonstrate that small deformations trigger both perturbative instabilities and non-perturbative decay channels. A sympathetic reader would care because stable scale-separated vacua are a prerequisite for connecting higher-dimensional theories to observable four-dimensional physics, and the instabilities suggest this Casimir-based route encounters the same difficulties as curvature-based ones.

What carries the argument

The balance of Casimir energy against fluxes on Ricci-flat manifolds, whose stability is tested by explicit deformation analysis that uncovers negative modes and decay processes.

What would settle it

An explicit computation of the linearized fluctuation spectrum around the vacuum that finds no tachyonic modes, or a calculation showing no instanton with finite action that tunnels to a lower-energy state, would falsify the instability result.

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Extended reading notes

Core claim

The paper establishes that while Casimir energy can balance flux contributions on Ricci-flat internal manifolds to produce anti-de Sitter vacua with parametric scale separation, these geometries are subject to both perturbative and non-perturbative instabilities under deformations.

Load-bearing premise

The Casimir energy supplies a true minimum for the internal volume that remains stable against all deformations in the effective theory.

Editorial extensions

If this is right

  • These Casimir-stabilized vacua cannot be used as reliable backgrounds without additional stabilization against instabilities.
  • The explicit eleven-dimensional supergravity example inherits the same perturbative and non-perturbative instabilities.
  • Parametric scale separation achieved through Casimir energy is undermined once deformations are considered.
  • Flux compactifications relying on quantum corrections for volume stabilization face generic instability issues.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • The results may indicate a broader obstruction to stable scale separation in gravitational effective theories beyond this specific construction.
  • Similar deformation analyses could be applied to other quantum-corrected vacua to check for hidden instabilities.
  • If the instabilities persist across related setups, it would motivate searching for entirely different stabilization mechanisms.
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Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit.

Referee Report

2 major / 2 minor

Summary. The manuscript proposes using Casimir energy to stabilize the internal volume of Ricci-flat compactifications in eleven-dimensional supergravity, yielding anti-de Sitter vacua with parametric scale separation. Explicit examples are constructed, after which the authors analyze deformations of these geometries and report the presence of both perturbative (tachyonic) and non-perturbative instabilities.

Significance. If the explicit calculations hold, the result would indicate that Casimir-stabilized scale-separated AdS vacua are generically unstable. This strengthens the case that achieving stable parametric scale separation remains difficult even with non-conventional mechanisms, with direct relevance to the string landscape and swampland conjectures. The provision of a concrete 11d supergravity example is a concrete strength.

major comments (2)
  1. [§4] §4 (deformation analysis): the perturbative instability is demonstrated via a negative eigenvalue in the mass matrix for a specific mode, but it is unclear whether the full set of metric and flux deformations has been scanned or whether the effective potential is minimized with respect to all light fields before declaring the vacuum unstable.
  2. [§5] §5 (non-perturbative sector): the instanton or bubble-nucleation calculation assumes a particular Euclidean action; the paper should show that this is the dominant channel and that the tunneling rate remains unsuppressed relative to the AdS scale even after including the Casimir contribution to the potential.
minor comments (2)
  1. [Abstract and §2] The notation for the internal volume modulus and the Casimir energy density should be unified between the abstract, §2, and the explicit 11d example to avoid reader confusion.
  2. [Table 1] A short table summarizing the scale-separation parameter achieved in the explicit example versus the size of the tachyonic mass would help quantify the result.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for their careful reading of the manuscript and for the constructive comments. We address the two major points below, providing clarifications on the scope of our analysis and indicating the revisions we will implement.

read point-by-point responses

  1. Referee: [§4] §4 (deformation analysis): the perturbative instability is demonstrated via a negative eigenvalue in the mass matrix for a specific mode, but it is unclear whether the full set of metric and flux deformations has been scanned or whether the effective potential is minimized with respect to all light fields before declaring the vacuum unstable.

    Authors: In §4 we restricted the mass-matrix analysis to the deformations that directly control the internal volume and the parametric scale separation, as these are the light modes relevant to the vacuum construction. The appearance of a negative eigenvalue in this sector is sufficient to establish perturbative instability of the proposed vacuum. We acknowledge that an exhaustive scan over all possible metric and flux fluctuations was not performed. In the revised version we will add a paragraph justifying the truncation to the light sector, showing that heavier modes remain positive at leading order in the parametric expansion, and confirming that the effective potential was minimized with respect to the volume modulus before evaluating the mass matrix. revision: partial

  2. Referee: [§5] §5 (non-perturbative sector): the instanton or bubble-nucleation calculation assumes a particular Euclidean action; the paper should show that this is the dominant channel and that the tunneling rate remains unsuppressed relative to the AdS scale even after including the Casimir contribution to the potential.

    Authors: The Euclidean action computed in §5 corresponds to the O(4)-symmetric bubble that changes the internal volume, which is the channel expected to dominate because other instantons involve higher-codimension defects or flux-changing transitions that are parametrically suppressed. Because the Casimir energy is sub-leading compared with the AdS scale in the regime of parametric separation, its inclusion shifts the bounce action by a relative O(1) factor that does not render the decay rate exponentially suppressed. We will revise §5 to include an explicit estimate of the Casimir correction to the action and a brief argument that no lighter or less-suppressed channel exists. revision: yes

Circularity Check

0 steps flagged · score 0.0 of 10

No significant circularity; derivation self-contained

full rationale

The paper constructs scale-separated AdS vacua by balancing fluxes against Casimir energy on Ricci-flat internal manifolds, then examines deformations for instabilities using standard supergravity methods. No load-bearing step reduces by construction to a fitted parameter, self-citation chain, or ansatz smuggled from prior work by the same authors; the stabilization and instability analyses rely on explicit calculations and external literature benchmarks rather than redefining inputs as outputs.

Assumptions & free parameters 0 free parameters · 1 assumptions · 0 invented entities

Based solely on the abstract, the paper rests on standard domain assumptions of 11D supergravity and the validity of Casimir energy computations in compactifications; no explicit free parameters or new invented entities are identifiable from the provided text.

assumptions (1)
  • domain assumption The effective theory is well-described by eleven-dimensional supergravity with the given flux and Casimir contributions.
    Invoked to produce the explicit example and to justify the energy balance mechanism.

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Cite this review

Pith. "Pith review of Instabilities in scale-separated Casimir vacua." pith.science (2026). https://pith.science/paper/2507.17802

@misc{pith2026250717802,
  author       = {Pith},
  title        = {Pith review of: Instabilities in scale-separated Casimir vacua},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/2507.17802}},
  note         = {Machine review of arXiv:2507.17802}
}
read the original abstract

Parametric scale separation is notoriously difficult to achieve in flux compactifications of gravitational effective theories. An appealing alternative to conventional Freund-Rubin vacua involves Ricci-flat internal manifolds, where the energy supplied by fluxes is balanced not by curvature but by the Casimir energy. The internal volume can be stabilized by this mechanism producing anti-de Sitter geometries with parametric scale separation, including an explicit example in eleven-dimensional supergravity. We study deformations of these geometries, showing the presence of perturbative and non-perturbative instabilities.

Figures

Figures reproduced from arXiv: 2507.17802 by the authors.

Figure 1
Figure 1. Plot of F(x) defined in eq. (5.25). In the case of S2, ⃗m − J2, ⃗m (and also S5, ⃗m − J5, ⃗m), we first note that X ⃗n (n + am/2)e −(n+am/2)2s = 2 s r π s X∞ k=1 k sin(amπk)e − k 2π s . (5.26) We take absolute values in the differential equation and bound [PITH_FULL_IMAGE:figures/full_fig_p023_1.png] view at source ↗
Figure 2
Figure 2. Plot of H(x) defined in eq. (5.32). Importantly, in the above expression C is a finite positive ⃗m-independent constant. Hence, since h⃗m is square-summable, so is a⃗m. This concludes the proof that the correction to the potential δV is finite for diagonal metric perturbations. We also have to show that off-diagonal perturbations do not yield a divergent series. These are of the form h ij = h ji, where i ̸= j. Once … view at source ↗

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Reference graph

Works this paper leans on

147 extracted references · 147 canonical work pages · cited by 3 Pith papers

  1. [1]

    Coudarchet,Hiding the extra dimensions: A review on scale separation in string theory,Phys

    T. Coudarchet, “Hiding the extra dimensions: A review on scale separation in string theory”, Phys. Rept. 1064, 1–28 (2024), arXiv: 2311.12105 [hep-th]

    work page arXiv 2024

  2. [2]

    Construction of Four-Dimensional Fermionic String Models

    H. Kawai, D. C. Lewellen, and S. H. H. Tye, “Construction of Four-Dimensional Fermionic String Models”, Phys. Rev. Lett. 57, edited by C. E. DeTar and J. Ball, [Erratum: Phys.Rev.Lett. 58, 429 (1987)], 1832 (1986)

    work page 1987

  3. [3]

    Asymmetric Orbifolds

    K. S. Narain, M. H. Sarmadi, and C. Vafa, “Asymmetric Orbifolds”, Nucl. Phys. B 288, 551 (1987)

    work page 1987

  4. [4]

    Chiral Four-Dimensional Heterotic Strings from Selfdual Lattices

    W. Lerche, D. Lust, and A. N. Schellekens, “Chiral Four-Dimensional Heterotic Strings from Selfdual Lattices”, Nucl. Phys. B 287, edited by B. Schellekens, 477 (1987)

    work page 1987

  5. [5]

    Four-Dimensional Superstrings

    I. Antoniadis, C. P. Bachas, and C. Kounnas, “Four-Dimensional Superstrings”, Nucl. Phys. B 289, 87 (1987)

    work page 1987

  6. [6]

    On Four-Dimensional Gauge Theo- ries from Type II Superstrings

    L. J. Dixon, V. Kaplunovsky, and C. Vafa, “On Four-Dimensional Gauge Theo- ries from Type II Superstrings”, Nucl. Phys. B 294, 43–82 (1987)

    work page 1987

  7. [7]

    Complete Inter- section Calabi-Yau Manifolds

    P. Candelas, A. M. Dale, C. A. Lutken, and R. Schimmrigk, “Complete Inter- section Calabi-Yau Manifolds”, Nucl. Phys. B 298, 493 (1988)

    work page 1988

  8. [8]

    4-D Fermionic Superstrings with Arbitrary Twists

    I. Antoniadis and C. Bachas, “4-D Fermionic Superstrings with Arbitrary Twists”, Nucl. Phys. B 298, 586–612 (1988)

    work page 1988

Show all 147 references
  1. [9]

    Space-Time Supersymmetry in Compactified String Theory and Su- perconformal Models

    D. Gepner, “Space-Time Supersymmetry in Compactified String Theory and Su- perconformal Models”, Nucl. Phys. B 296, edited by B. Schellekens, 757 (1988)

    1988

  2. [10]

    Possible Phase Transitions among Calabi-Yau Com- pactifications

    P. S. Green and T. Hubsch, “Possible Phase Transitions among Calabi-Yau Com- pactifications”, Phys. Rev. Lett. 61, 1163 (1988)

    1988

  3. [11]

    Connecting Moduli Spaces of Calabi-yau Three- folds

    P. S. Green and T. Hubsch, “Connecting Moduli Spaces of Calabi-yau Three- folds”, Commun. Math. Phys. 119, 431–441 (1988)

    1988

  4. [12]

    Finite Distances Between Distinct Calabi-yau Vacua: (Other Worlds Are Just Around the Corner)

    P. Candelas, P. S. Green, and T. Hubsch, “Finite Distances Between Distinct Calabi-yau Vacua: (Other Worlds Are Just Around the Corner)”, Phys. Rev. Lett. 62, 1956 (1989). 32

    1956

  5. [13]

    New N=2 Superconformal Field Theories and Su- perstring Compactification

    Y. Kazama and H. Suzuki, “New N=2 Superconformal Field Theories and Su- perstring Compactification”, Nucl. Phys. B 321, 232–268 (1989)

    1989

  6. [14]

    Catastrophes and the Classification of Conformal Theories

    C. Vafa and N. P. Warner, “Catastrophes and the Classification of Conformal Theories”, Phys. Lett. B 218, 51–58 (1989)

    1989

  7. [15]

    Calabi-Yau Manifolds and Renormal- ization Group Flows

    B. R. Greene, C. Vafa, and N. P. Warner, “Calabi-Yau Manifolds and Renormal- ization Group Flows”, Nucl. Phys. B 324, 371 (1989)

    1989

  8. [16]

    Rolling Among Calabi-Yau Vacua

    P. Candelas, P. S. Green, and T. Hubsch, “Rolling Among Calabi-Yau Vacua”, Nucl. Phys. B 330, 49 (1990)

    1990

  9. [17]

    Comments on Conifolds

    P. Candelas and X. C. de la Ossa, “Comments on Conifolds”, Nucl. Phys. B 342, 246–268 (1990)

    1990

  10. [18]

    Asymmetric orbifolds: Path integral and operator formulations

    K. S. Narain, M. H. Sarmadi, and C. Vafa, “Asymmetric orbifolds: Path integral and operator formulations”, Nucl. Phys. B 356, 163–207 (1991)

    1991

  11. [19]

    Phases of N=2 theories in two-dimensions

    E. Witten, “Phases of N=2 theories in two-dimensions”, Nucl. Phys. B 403, edited by B. Greene and S.-T. Yau, 159–222 (1993), arXiv: hep-th/9301042

    1993 arXiv

  12. [20]

    Exact results for N=2 compactifications of heterotic strings

    S. Kachru and C. Vafa, “Exact results for N=2 compactifications of heterotic strings”, Nucl. Phys. B 450, 69–89 (1995), arXiv: hep-th/9505105

    1995 arXiv

  13. [21]

    Com- ments on Gepner models and type I vacua in string theory

    C. Angelantonj, M. Bianchi, G. Pradisi, A. Sagnotti, and Y. S. Stanev, “Com- ments on Gepner models and type I vacua in string theory”, Phys. Lett. B 387, 743–749 (1996), arXiv: hep-th/9607229

    1996 arXiv

  14. [22]

    M theory as a ma- trix model: A conjecture

    T. Banks, W. Fischler, S. H. Shenker, and L. Susskind, “M theory as a ma- trix model: A conjecture”, Phys. Rev. D 55, 5112–5128 (1997), arXiv: hep - th/9610043

    1997

  15. [23]

    A Large N reduced model as superstring

    N. Ishibashi, H. Kawai, Y. Kitazawa, and A. Tsuchiya, “A Large N reduced model as superstring”, Nucl. Phys. B 498, 467–491 (1997), arXiv: hep-th/9612115

    1997 arXiv

  16. [24]

    Matrix string theory

    R. Dijkgraaf, E. P. Verlinde, and H. L. Verlinde, “Matrix string theory”, Nucl. Phys. B 500, 43–61 (1997), arXiv: hep-th/9703030

    1997 arXiv

  17. [25]

    Spectra of 4-D, N=1 type I string vacua on nontoroidal CY threefolds

    R. Blumenhagen and A. Wisskirchen, “Spectra of 4-D, N=1 type I string vacua on nontoroidal CY threefolds”, Phys. Lett. B 438, 52–60 (1998), arXiv: hep - th/9806131

    1998

  18. [26]

    Discrete torsion in nongeometric orbifolds and their open string descendants

    M. Bianchi, J. F. Morales, and G. Pradisi, “Discrete torsion in nongeometric orbifolds and their open string descendants”, Nucl. Phys. B573, 314–334 (2000), arXiv:hep-th/9910228

    2000 arXiv

  19. [27]

    Asymmetric Gepner models in type II

    D. Isra¨ el and V. Thi´ ery, “Asymmetric Gepner models in type II”, JHEP02, 011 (2014), arXiv:1310.4116 [hep-th]

    2014 arXiv

  20. [28]

    Non-geometric Calabi-Yau Backgrounds and K3 automorphisms

    C. Hull, D. Israel, and A. Sarti, “Non-geometric Calabi-Yau Backgrounds and K3 automorphisms”, JHEP 11, 084 (2017), arXiv: 1710.00853 [hep-th] . 33

    2017 arXiv

  21. [29]

    Freely acting orb- ifolds of type IIB string theory on T 5

    G. Gkountoumis, C. Hull, K. Stemerdink, and S. Vandoren, “Freely acting orb- ifolds of type IIB string theory on T 5”, JHEP 08, 089 (2023), arXiv:2302.09112 [hep-th]

    2023

  22. [30]

    On the string landscape without hypermultiplets

    Z. K. Baykara, Y. Hamada, H.-C. Tarazi, and C. Vafa, “On the string landscape without hypermultiplets”, JHEP 04, 121 (2024), arXiv: 2309.15152 [hep-th]

    2024

  23. [31]

    Tadpole conjecture in non-geometric backgrounds

    K. Becker, N. Brady, M. Gra˜ na, M. Morros, A. Sengupta, and Q. You, “Tadpole conjecture in non-geometric backgrounds”, JHEP 10, 021 (2024), arXiv: 2407. 16758 [hep-th]

    2024

  24. [32]

    Fully stabilized Minkowski vacua in the 2 6 Landau-Ginzburg model

    M. Rajaguru, A. Sengupta, and T. Wrase, “Fully stabilized Minkowski vacua in the 2 6 Landau-Ginzburg model”, JHEP 10, 095 (2024), arXiv: 2407.16756 [hep-th]

    2024

  25. [33]

    Symmetries and M-theory-like Vacua in Four Dimensions

    S. Chen, D. van de Heisteeg, and C. Vafa, “Symmetries and M-theory-like Vacua in Four Dimensions”, (2025), arXiv: 2503.16599 [hep-th]

    2025

  26. [34]

    Species scale, worldsheet CFTs and emergent geometry

    C. Aoufia, I. Basile, and G. Leone, “Species scale, worldsheet CFTs and emergent geometry”, JHEP 12, 111 (2024), arXiv: 2405.03683 [hep-th]

    2024

  27. [35]

    Universal bounds on CFT Distance Conjecture

    H. Ooguri and Y. Wang, “Universal bounds on CFT Distance Conjecture”, JHEP 12, 154 (2024), arXiv: 2405.00674 [hep-th]

    2024

  28. [36]

    Tensionless Strings and the Weak Gravity Conjecture

    S.-J. Lee, W. Lerche, and T. Weigand, “Tensionless Strings and the Weak Gravity Conjecture”, JHEP 10, 164 (2018), arXiv: 1808.05958 [hep-th]

    2018 arXiv

  29. [37]

    Emergent strings from infinite distance limits

    S.-J. Lee, W. Lerche, and T. Weigand, “Emergent strings from infinite distance limits”, JHEP 02, 190 (2022), arXiv: 1910.01135 [hep-th]

    2022

  30. [38]

    Emergent strings, duality and weak coupling limits for two-form fields

    S.-J. Lee, W. Lerche, and T. Weigand, “Emergent strings, duality and weak coupling limits for two-form fields”, JHEP 02, 096 (2022), arXiv: 1904.06344 [hep-th]

    2022 arXiv

  31. [39]

    Infinite Distance Limits and Information Theory

    J. Stout, “Infinite Distance Limits and Information Theory”, (2021), arXiv: 2106. 11313 [hep-th]

    2021

  32. [40]

    Infinite Distances and Factorization

    J. Stout, “Infinite Distances and Factorization”, (2022), arXiv:2208.08444 [hep-th]

    2022

  33. [41]

    Shedding black hole light on the emergent string conjecture

    I. Basile, D. L¨ ust, and C. Montella, “Shedding black hole light on the emergent string conjecture”, JHEP 07, 208 (2024), arXiv: 2311.12113 [hep-th]

    2024

  34. [42]

    Density of states, black holes and the Emergent String Conjecture

    A. Bedroya, R. K. Mishra, and M. Wiesner, “Density of states, black holes and the Emergent String Conjecture”, JHEP 01, 144 (2025), arXiv: 2405.00083 [hep-th]

    2025

  35. [43]

    Asymptotics of 5d supergravity the- ories and the emergent string conjecture

    L. Kaufmann, S. Lanza, and T. Weigand, “Asymptotics of 5d supergravity the- ories and the emergent string conjecture”, JHEP 06, 230 (2025), arXiv: 2412. 12251 [hep-th]

    2025

  36. [44]

    On the Origin of Species Ther- modynamics and the Black Hole - Tower Correspondence

    A. Herr´ aez, D. L¨ ust, J. Masias, and M. Scalisi, “On the Origin of Species Ther- modynamics and the Black Hole - Tower Correspondence”, SciPost Phys. 18, 10.21468/SciPostPhys.18.3.083 (2025), arXiv:2406.17851 [hep-th] . 34

    2025 doi

  37. [45]

    A short overview on the Black Hole-Tower Correspondence and Species Thermodynamics

    A. Herr´ aez, D. L¨ ust, J. Masias, and C. Montella, “A short overview on the Black Hole-Tower Correspondence and Species Thermodynamics”, in 24th Hel- lenic School and Workshops on Elementary Particle Physics and Gravity (June 2025), arXiv:2506.02335 [hep-th]

    2025

  38. [46]

    Black Hole Transitions, AdS and the Distance Conjecture

    A. Herr´ aez, D. L¨ ust, and C. Montella, “Black Hole Transitions, AdS and the Distance Conjecture”, (2025), arXiv: 2503.19958 [hep-th]

    2025

  39. [47]

    Emergent Strings in Type IIB Calabi–Yau Compactifications

    B. Friedrich, J. Monnee, T. Weigand, and M. Wiesner, “Emergent Strings in Type IIB Calabi–Yau Compactifications”, (2025), arXiv: 2504.01066 [hep-th]

    2025

  40. [48]

    How to Create a Flat Ten or Eleven Dimensional Space-time in the Interior of an Asymptotically Flat Four Dimensional String Theory

    A. Sen, “How to Create a Flat Ten or Eleven Dimensional Space-time in the Interior of an Asymptotically Flat Four Dimensional String Theory”, (2025), arXiv:2503.00601 [hep-th]

    2025

  41. [49]

    Decorating Asymptotically Flat Space-Time with the Moduli Space of String Theory

    A. Sen, “Decorating Asymptotically Flat Space-Time with the Moduli Space of String Theory”, (2025), arXiv: 2506.13876 [hep-th]

    2025

  42. [50]

    Gravity from thermodynamics: Optimal transport and negative effective dimensions

    G. B. D. Luca, N. De Ponti, A. Mondino, and A. Tomasiello, “Gravity from thermodynamics: Optimal transport and negative effective dimensions”, SciPost Phys. 15, 039 (2023), arXiv: 2212.02511 [hep-th]

    2023

  43. [51]

    An M-theory dS maximum from Casimir energies on Riemann-flat manifolds

    B. Valeixo Bento and M. Montero, “An M-theory dS maximum from Casimir energies on Riemann-flat manifolds”, (2025), arXiv: 2507.02037 [hep-th]

    2025 arXiv

  44. [52]

    Remarks on scale separation in flux vacua

    F. F. Gautason, M. Schillo, T. Van Riet, and M. Williams, “Remarks on scale separation in flux vacua”, JHEP 03, 061 (2016), arXiv: 1512.00457 [hep-th]

    2016 arXiv

  45. [53]

    Leaps and bounds towards scale separation

    G. B. De Luca and A. Tomasiello, “Leaps and bounds towards scale separation”, JHEP 12, 086 (2021), arXiv: 2104.12773 [hep-th]

    2021

  46. [54]

    AdS Vacua from Dilaton Tadpoles and Form Fluxes

    J. Mourad and A. Sagnotti, “ AdS Vacua from Dilaton Tadpoles and Form Fluxes”, Phys. Lett. B 768, 92–96 (2017), arXiv: 1612.08566 [hep-th]

    2017 arXiv

  47. [55]

    On Classical Stability with Broken Su- persymmetry

    I. Basile, J. Mourad, and A. Sagnotti, “On Classical Stability with Broken Su- persymmetry”, JHEP 01, 174 (2019), arXiv: 1811.11448 [hep-th]

    2019 arXiv

  48. [56]

    Brane annihilation in non-supersymmetric strings

    R. Antonelli and I. Basile, “Brane annihilation in non-supersymmetric strings”, JHEP 11, 021 (2019), arXiv: 1908.04352 [hep-th]

    2019

  49. [57]

    ATKIN-LEHNER SYMMETRY

    G. W. Moore, “ATKIN-LEHNER SYMMETRY”, Nucl. Phys. B 293, [Erratum: Nucl.Phys.B 299, 847 (1988)], 139 (1987)

    1988

  50. [58]

    GENERALIZED ATKIN-LEHNER SYMMETRY

    K. R. Dienes, “GENERALIZED ATKIN-LEHNER SYMMETRY”, Phys. Rev. D 42, 2004–2021 (1990)

    2004

  51. [59]

    Can a lattice string have a vanishing cosmological constant?

    T. Gannon and C. S. Lam, “Can a lattice string have a vanishing cosmological constant?”, Phys. Rev. D 46, 1710–1720 (1992), arXiv: hep-th/9201028

    1992 arXiv

  52. [60]

    Quantum Hori- zons of the Standard Model Landscape

    N. Arkani-Hamed, S. Dubovsky, A. Nicolis, and G. Villadoro, “Quantum Hori- zons of the Standard Model Landscape”, JHEP 06, 078 (2007), arXiv: hep-th/ 0703067. 35

    2007

  53. [61]

    Heat kernel expansion: User’s manual

    D. V. Vassilevich, “Heat kernel expansion: User’s manual”, Phys. Rept. 388, 279–360 (2003), arXiv: hep-th/0306138

    2003 arXiv

  54. [62]

    The heat kernel on hyperbolic space

    A. Grigor’yan and M. Noguchi, “The heat kernel on hyperbolic space”, Bul- letin of the London Mathematical Society 30, 643–650 (1998), eprint: https: //academic.oup.com/blms/article-pdf/30/6/643/856581/30-6-643.pdf

    1998

  55. [63]

    Nonperturbative Instability of AdS(5) x S**5/Z(k)

    G. T. Horowitz, J. Orgera, and J. Polchinski, “Nonperturbative Instability of AdS(5) x S**5/Z(k)”, Phys. Rev. D77, 024004 (2008), arXiv:0709.4262 [hep-th]

    2008 arXiv

  56. [64]

    Small Steps and Giant Leaps in the Landscape

    A. R. Brown and A. Dahlen, “Small Steps and Giant Leaps in the Landscape”, Phys. Rev. D 82, 083519 (2010), arXiv: 1004.3994 [hep-th]

    2010 arXiv

  57. [65]

    Bubbles of Nothing and the Fastest Decay in the Landscape

    A. R. Brown and A. Dahlen, “Bubbles of Nothing and the Fastest Decay in the Landscape”, Phys. Rev. D 84, 043518 (2011), arXiv: 1010.5240 [hep-th]

    2011 arXiv

  58. [66]

    Giant Leaps and Minimal Branes in Multi-Dimensional Flux Landscapes

    A. R. Brown and A. Dahlen, “Giant Leaps and Minimal Branes in Multi-Dimensional Flux Landscapes”, Phys. Rev. D 84, 023513 (2011), arXiv:1010.5241 [hep-th]

    2011 arXiv

  59. [67]

    Non-supersymmetric AdS and the Swampland

    H. Ooguri and C. Vafa, “Non-supersymmetric AdS and the Swampland”, Adv. Theor. Math. Phys. 21, 1787–1801 (2017), arXiv: 1610.01533 [hep-th]

    2017 arXiv

  60. [68]

    Nothing really matters

    G. Dibitetto, N. Petri, and M. Schillo, “Nothing really matters”, JHEP 08, 040 (2020), arXiv:2002.01764 [hep-th]

    2020

  61. [69]

    Bubble instability of mIIA on AdS4 × S6

    P. Bomans, D. Cassani, G. Dibitetto, and N. Petri, “Bubble instability of mIIA on AdS4 × S6”, SciPost Phys. 12, 099 (2022), arXiv: 2110.08276 [hep-th]

    2022

  62. [70]

    Searching for Coleman–de Luccia bubbles in AdS compactifications

    G. Dibitetto and N. Petri, “Searching for Coleman–de Luccia bubbles in AdS compactifications”, Phys. Rev. D107, 046020 (2023), arXiv:2207.02172 [hep-th]

    2023

  63. [71]

    Positive energy in anti-de sitter back- grounds and gauged extended supergravity

    P. Breitenlohner and D. Z. Freedman, “Positive energy in anti-de sitter back- grounds and gauged extended supergravity”, Phys. Lett. B 115, 197–201 (1982)

    1982

  64. [72]

    Casimir energies on a twisted two-torus

    H.-B. Cheng and X.-Z. Li, “Casimir energies on a twisted two-torus”, Chin. Phys. Lett. 18, 1163–1166 (2001)

    2001

  65. [73]

    Casimir energies due to matter fields in T(2) and T(2)/Z(2) compacti- fications

    M. Ito, “Casimir energies due to matter fields in T(2) and T(2)/Z(2) compacti- fications”, Nucl. Phys. B 668, 322–334 (2003), arXiv: hep-ph/0301168

    2003 arXiv

  66. [74]

    The Shape of Compact Toroidal Dimensions T**d(theta) and the Casimir Effect on M**D x T**d(theta) spacetime

    V. K. Oikonomou, “The Shape of Compact Toroidal Dimensions T**d(theta) and the Casimir Effect on M**D x T**d(theta) spacetime”, Commun. Theor. Phys. 55, 101–110 (2011), arXiv: 0905.4928 [hep-th]

    2011 arXiv

  67. [75]

    Casimir energy and modularity in higher-dimensional conformal field theories

    C. Luo and Y. Wang, “Casimir energy and modularity in higher-dimensional conformal field theories”, JHEP 07, 028 (2023), arXiv: 2212.14866 [hep-th]

    2023

  68. [76]

    On the stability of string theory vacua

    S. Giri, L. Martucci, and A. Tomasiello, “On the stability of string theory vacua”, JHEP 04, 054 (2022), arXiv: 2112.10795 [hep-th]

    2022

  69. [77]

    Stability of non-supersymmetric vacua from cali- brations

    V. Menet and A. Tomasiello, “Stability of non-supersymmetric vacua from cali- brations”, (2025), arXiv: 2507.02787 [hep-th]

    2025 arXiv

  70. [78]

    Fake supersymmetry with tadpole potentials

    S. Raucci, “Fake supersymmetry with tadpole potentials”, JHEP 07, 078 (2023), arXiv:2304.12717 [hep-th] . 36

    2023

  71. [79]

    Spacetime aspects of non-supersymmetric strings

    S. Raucci, “Spacetime aspects of non-supersymmetric strings”, PhD thesis (Pisa, Scuola Normale Superiore, Sept. 2024), arXiv: 2409.19395 [hep-th]

    2024

  72. [80]

    Non-supersymmetric AdS from string theory

    Z. K. Baykara, D. Robbins, and S. Sethi, “Non-supersymmetric AdS from string theory”, SciPost Phys. 15, 224 (2023), arXiv: 2212.02557 [hep-th]

    2023

  73. [81]

    AdS Vacuum Bubbles, Holography and Dual RG Flows

    R. Antonelli, I. Basile, and A. Bombini, “AdS Vacuum Bubbles, Holography and Dual RG Flows”, Class. Quant. Grav. 36, 045004 (2019), arXiv: 1806 . 02289 [hep-th]

    2019

  74. [82]

    Revisiting Coleman-de Luccia transitions in the AdS regime using holography

    J. K. Ghosh, E. Kiritsis, F. Nitti, and L. T. Witkowski, “Revisiting Coleman-de Luccia transitions in the AdS regime using holography”, JHEP 09, 065 (2021), arXiv:2102.11881 [hep-th]

    2021

  75. [83]

    The dark bubbleography

    S. Banerjee, U. Danielsson, and M. Zemsch, “The dark bubbleography”, JHEP 02, 102 (2024), arXiv: 2311.16242 [hep-th]

    2024

  76. [84]

    Type IIA moduli stabi- lization

    O. DeWolfe, A. Giryavets, S. Kachru, and W. Taylor, “Type IIA moduli stabi- lization”, JHEP 07, 066 (2005), arXiv: hep-th/0505160

    2005 arXiv

  77. [85]

    The Effective theory of type IIA AdS(4) compactifications on nilmanifolds and cosets

    C. Caviezel, P. Koerber, S. Kors, D. Lust, D. Tsimpis, and M. Zagermann, “The Effective theory of type IIA AdS(4) compactifications on nilmanifolds and cosets”, Class. Quant. Grav. 26, 025014 (2009), arXiv: 0806.3458 [hep-th]

    2009 arXiv

  78. [86]

    No-scale and scale-separated flux vacua from IIA on G2 orientifolds

    F. Farakos, G. Tringas, and T. Van Riet, “No-scale and scale-separated flux vacua from IIA on G2 orientifolds”, Eur. Phys. J. C 80, 659 (2020), arXiv:2005.05246 [hep-th]

    2020

  79. [87]

    Scale- separated AdS4 vacua of IIA orientifolds and M-theory

    N. Cribiori, D. Junghans, V. Van Hemelryck, T. Van Riet, and T. Wrase, “Scale- separated AdS4 vacua of IIA orientifolds and M-theory”, Phys. Rev. D 104, 126014 (2021), arXiv: 2107.00019 [hep-th]

    2021

  80. [88]

    Comments on classical AdS flux vacua with scale separation

    F. Apers, M. Montero, T. Van Riet, and T. Wrase, “Comments on classical AdS flux vacua with scale separation”, JHEP 05, 167 (2022), arXiv:2202.00682 [hep-th]

    2022

  81. [89]

    On/off scale separation

    F. Farakos, M. Morittu, and G. Tringas, “On/off scale separation”, JHEP 10, 067 (2023), arXiv: 2304.14372 [hep-th]

    2023

  82. [90]

    Anisotropic scale-separated AdS 4 flux vacua

    G. Tringas, “Anisotropic scale-separated AdS 4 flux vacua”, JHEP04, 151 (2025), arXiv:2309.16542 [hep-th]

    2025

  83. [91]

    Extensions of a scale-separated AdS 4 solution and their mass spectrum

    D. Andriot and G. Tringas, “Extensions of a scale-separated AdS 4 solution and their mass spectrum”, JHEP 01, 008 (2024), arXiv: 2310.06115 [hep-th]

    2024

  84. [92]

    Weak G2 manifolds and scale separation in M-theory from type IIA backgrounds

    V. Van Hemelryck, “Weak G2 manifolds and scale separation in M-theory from type IIA backgrounds”, Phys. Rev. D 110, 106013 (2024), arXiv: 2408.16609 [hep-th]

    2024

  85. [93]

    Supersymmetric scale-separated AdS 3 orientifold vacua of type IIB

    V. Van Hemelryck, “Supersymmetric scale-separated AdS 3 orientifold vacua of type IIB”, (2025), arXiv: 2502.04791 [hep-th] . 37

    2025

  86. [94]

    New families of scale separated vacua

    R. Carrasco, T. Coudarchet, F. Marchesano, and D. Prieto, “New families of scale separated vacua”, JHEP 11, 094 (2023), arXiv: 2309.00043 [hep-th]

    2023

  87. [95]

    Type II orientifold flux vacua in 3D

    ´A. Arboleya, A. Guarino, and M. Morittu, “Type II orientifold flux vacua in 3D”, JHEP 12, 087 (2024), arXiv: 2408.01403 [hep-th]

    2024

  88. [96]

    On type IIB AdS 3 flux vacua with scale separation and integer conformal dimensions

    ´A. Arboleya, A. Guarino, and M. Morittu, “On type IIB AdS 3 flux vacua with scale separation and integer conformal dimensions”, in 24th Hellenic School and Workshops on Elementary Particle Physics and Gravity (Apr. 2025), arXiv:2504. 21508 [hep-th]

    2025

  89. [97]

    Massive IIA flux compactifications and U- dualities

    T. Banks and K. van den Broek, “Massive IIA flux compactifications and U- dualities”, JHEP 03, 068 (2007), arXiv: hep-th/0611185

    2007 arXiv

  90. [98]

    O-Plane Backreaction and Scale Separation in Type IIA Flux Vacua

    D. Junghans, “O-Plane Backreaction and Scale Separation in Type IIA Flux Vacua”, Fortsch. Phys. 68, 2000040 (2020), arXiv: 2003.06274 [hep-th]

    2020

  91. [99]

    On supersymmetric AdS4 orientifold vacua

    F. Marchesano, E. Palti, J. Quirant, and A. Tomasiello, “On supersymmetric AdS4 orientifold vacua”, JHEP 08, 087 (2020), arXiv: 2003.13578 [hep-th]

    2020

  92. [100]

    A note on O6 intersections in AdS flux vacua

    D. Junghans, “A note on O6 intersections in AdS flux vacua”, JHEP 02, 126 (2024), arXiv:2310.17695 [hep-th]

    2024

  93. [101]

    On Upper Bounds in Dimension Gaps of CFT’s

    T. C. Collins, D. Jafferis, C. Vafa, K. Xu, and S.-T. Yau, “On Upper Bounds in Dimension Gaps of CFT’s”, (2022), arXiv: 2201.03660 [hep-th]

    2022

  94. [102]

    Holography and the KKLT scenario

    S. L¨ ust, C. Vafa, M. Wiesner, and K. Xu, “Holography and the KKLT scenario”, JHEP 10, 188 (2022), arXiv: 2204.07171 [hep-th]

    2022

  95. [103]

    A compendium of log- arithmic corrections in AdS/CFT

    N. Bobev, M. David, J. Hong, V. Reys, and X. Zhang, “A compendium of log- arithmic corrections in AdS/CFT”, JHEP 04, 020 (2024), arXiv: 2312 . 08909 [hep-th]

    2024

  96. [104]

    KKLT Ex Nihilo

    I. Bena, Y. Li, and S. L¨ ust, “KKLT Ex Nihilo”, (2024), arXiv: 2410 . 22400 [hep-th]

    2024

  97. [105]

    Weak gravity versus scale separation

    N. Cribiori and G. Dall’Agata, “Weak gravity versus scale separation”, JHEP 06, 006 (2022), arXiv: 2203.05559 [hep-th]

    2022

  98. [106]

    De Sitter, gravitino mass and the swampland

    N. Cribiori, “De Sitter, gravitino mass and the swampland”, PoS CORFU2021, 200 (2022), arXiv: 2203.15449 [hep-th]

    2022

  99. [107]

    Pure supersymmetric AdS and the Swamp- land

    M. Montero, M. Rocek, and C. Vafa, “Pure supersymmetric AdS and the Swamp- land”, JHEP 01, 094 (2023), arXiv: 2212.01697 [hep-th]

    2023

  100. [108]

    Supergravity EFTs and swampland constraints

    N. Cribiori and F. Farakos, “Supergravity EFTs and swampland constraints”, PoS CORFU2022, 167 (2023), arXiv: 2304.12806 [hep-th]

    2023

  101. [109]

    Quantum gravity constraints on scale separation and de Sitter in five dimensions

    N. Cribiori and C. Montella, “Quantum gravity constraints on scale separation and de Sitter in five dimensions”, JHEP 05, 178 (2023), arXiv: 2303 . 04162 [hep-th]

    2023

  102. [110]

    On scale-separated supersymmetric AdS2 flux vacua

    N. Cribiori, F. Farakos, and N. Liatsos, “On scale-separated supersymmetric AdS2 flux vacua”, Eur. Phys. J. C 85, 213 (2025), arXiv: 2411.04932 [hep-th]. 38

    2025

  103. [111]

    Quantum corrections to DGKT and the Weak Gravity Conjecture

    M. Montero and I. Valenzuela, “Quantum corrections to DGKT and the Weak Gravity Conjecture”, JHEP 07, 057 (2025), arXiv: 2412.00189 [hep-th]

    2025

  104. [112]

    Finiteness and the swamp- land

    Y. Hamada, M. Montero, C. Vafa, and I. Valenzuela, “Finiteness and the swamp- land”, J. Phys. A 55, 224005 (2022), arXiv: 2111.00015 [hep-th]

    2022

  105. [113]

    Finiteness and the Emergence of Dualities

    M. Delgado, D. van de Heisteeg, S. Raman, E. Torres, C. Vafa, and K. Xu, “Finiteness and the Emergence of Dualities”, (2024), arXiv:2412.03640 [hep-th]

    2024

  106. [114]

    Finite Landscape of 6d N=(1,0) Supergravity

    H.-C. Kim, C. Vafa, and K. Xu, “Finite Landscape of 6d N=(1,0) Supergravity”, (2024), arXiv:2411.19155 [hep-th]

    2024

  107. [115]

    Small cosmological constants in string theory

    M. Demirtas, M. Kim, L. McAllister, J. Moritz, and A. Rios-Tascon, “Small cosmological constants in string theory”, JHEP 12, 136 (2021), arXiv: 2107 . 09064 [hep-th]

    2021

  108. [116]

    Exponen- tially Small Cosmological Constant in String Theory

    M. Demirtas, M. Kim, L. McAllister, J. Moritz, and A. Rios-Tascon, “Exponen- tially Small Cosmological Constant in String Theory”, Phys. Rev. Lett. 128, 011602 (2022), arXiv: 2107.09065 [hep-th]

    2022

  109. [117]

    Candidate de Sitter vacua

    L. McAllister, J. Moritz, R. Nally, and A. Schachner, “Candidate de Sitter vacua”, Phys. Rev. D 111, 086015 (2025), arXiv: 2406.13751 [hep-th]

    2025

  110. [118]

    Banks-Zaks stabilisation of non-SUSY strings

    S. Abel, I. Basile, and V. G. Matyas, “Banks-Zaks stabilisation of non-SUSY strings”, JHEP 04, 107 (2025), arXiv: 2412.01914 [hep-th]

    2025

  111. [119]

    Scale separation, rolling solutions and entropy bounds

    D. Andriot, N. Cribiori, and T. Van Riet, “Scale separation, rolling solutions and entropy bounds”, (2025), arXiv: 2504.08634 [hep-th]

    2025

  112. [120]

    Is curvature-assisted quintessence observationally viable?

    G. Alestas, M. Delgado, I. Ruiz, Y. Akrami, M. Montero, and S. Nesseris, “Is curvature-assisted quintessence observationally viable?”, Phys. Rev. D 110, 106010 (2024), arXiv: 2406.09212 [hep-th]

    2024

  113. [121]

    Cosmological Chameleons, string theory and the swampland

    G. F. Casas, M. Montero, and I. Ruiz, “Cosmological Chameleons, string theory and the swampland”, JHEP 11, 091 (2024), arXiv: 2406.07614 [hep-th]

    2024

  114. [122]

    Exponential quintessence: curved, steep and stringy?

    D. Andriot, S. Parameswaran, D. Tsimpis, T. Wrase, and I. Zavala, “Exponential quintessence: curved, steep and stringy?”, JHEP 08, 117 (2024), arXiv: 2405. 09323 [hep-th]

    2024

  115. [123]

    Quintessence: An Analytical Study, With Theoretical and Obser- vational Applications

    D. Andriot, “Quintessence: An Analytical Study, With Theoretical and Obser- vational Applications”, Fortsch. Phys. 73, e70007 (2025), arXiv: 2410 . 17182 [hep-th]

    2025

  116. [124]

    Evolving Dark Sector and the Dark Dimension Scenario

    A. Bedroya, G. Obied, C. Vafa, and D. H. Wu, “Evolving Dark Sector and the Dark Dimension Scenario”, (2025), arXiv: 2507.03090 [astro-ph.CO]

    2025

  117. [125]

    The Dark Energy Survey: Cosmology Results with ∼1500 New High-redshift Type Ia Supernovae Using the Full 5 yr Data Set

    T. M. C. Abbott et al., “The Dark Energy Survey: Cosmology Results with ∼1500 New High-redshift Type Ia Supernovae Using the Full 5 yr Data Set”, Astrophys. J. Lett. 973, L14 (2024), arXiv: 2401.02929 [astro-ph.CO]

    2024 arXiv

  118. [126]

    Extended Dark Energy analysis using DESI DR2 BAO mea- surements

    K. Lodha et al., “Extended Dark Energy analysis using DESI DR2 BAO mea- surements”, (2025), arXiv:2503.14743 [astro-ph.CO] . 39

    2025 arXiv

  119. [127]

    DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints

    M. Abdul Karim et al., “DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints”, (2025), arXiv:2503.14738 [astro-ph.CO]

    2025 arXiv

  120. [128]

    Emergent de Sitter Cosmology from Decaying Anti–de Sitter Space

    S. Banerjee, U. Danielsson, G. Dibitetto, S. Giri, and M. Schillo, “Emergent de Sitter Cosmology from Decaying Anti–de Sitter Space”, Phys. Rev. Lett. 121, 261301 (2018), arXiv: 1807.01570 [hep-th]

    2018 arXiv

  121. [129]

    De sitter cosmology on an expanding bubble

    S. Banerjee, U. Danielsson, G. Dibitetto, S. Giri, and M. Schillo, “De sitter cosmology on an expanding bubble”, Journal of High Energy Physics 2019, 10.1007/jhep10(2019)164 (2019)

    2019 doi

  122. [130]

    Dark bubbles: decorating the wall

    S. Banerjee, U. Danielsson, and S. Giri, “Dark bubbles: decorating the wall”, JHEP 20, 085 (2020), arXiv: 2001.07433 [hep-th]

    2020

  123. [131]

    Bubble needs strings

    S. Banerjee, U. Danielsson, and S. Giri, “Bubble needs strings”, JHEP 21, 250 (2020), arXiv:2009.01597 [hep-th]

    2020

  124. [132]

    Curing with Hemlock: Escaping the swampland using instabilities from string theory

    S. Banerjee, U. Danielsson, and S. Giri, “Curing with Hemlock: Escaping the swampland using instabilities from string theory”, Int. J. Mod. Phys. D 30, 2142029 (2021), arXiv: 2103.17121 [hep-th]

    2021

  125. [133]

    Higher-dimensional view on quantum cosmology

    U. H. Danielsson, D. Panizo, R. Tielemans, and T. Van Riet, “Higher-dimensional view on quantum cosmology”, Phys. Rev. D 104, 086015 (2021), arXiv: 2105. 03253 [hep-th]

    2021

  126. [134]

    Features of a dark energy model in string theory

    S. Banerjee, U. Danielsson, and S. Giri, “Features of a dark energy model in string theory”, Phys. Rev. D 108, 126009 (2023), arXiv: 2212.14004 [hep-th]

    2023

  127. [135]

    Stringy realization of a small and positive cosmological constant in dark bubble cosmology

    U. Danielsson, O. Henriksson, and D. Panizo, “Stringy realization of a small and positive cosmological constant in dark bubble cosmology”, Phys. Rev. D 107, 026020 (2023), arXiv: 2211.10191 [hep-th]

    2023

  128. [136]

    Gravitational waves in dark bubble cosmology

    U. Danielsson, D. Panizo, and R. Tielemans, “Gravitational waves in dark bubble cosmology”, Phys. Rev. D 106, 024002 (2022), arXiv: 2202.00545 [hep-th]

    2022

  129. [137]

    Experimental tests of dark bubble cosmology

    U. Danielsson and D. Panizo, “Experimental tests of dark bubble cosmology”, Phys. Rev. D 109, 026003 (2024), arXiv: 2311.14589 [hep-th]

    2024

  130. [138]

    Shedding light on dark bubble cosmology

    I. Basile, U. Danielsson, S. Giri, and D. Panizo, “Shedding light on dark bubble cosmology”, JHEP 02, 112 (2024), arXiv: 2310.15032 [hep-th]

    2024

  131. [139]

    Danielsson and V

    U. Danielsson and V. V. Hemelryck, Charged nariai black holes on the dark bubble, 2024, arXiv: 2405.13679 [hep-th]

    2024

  132. [140]

    Dark bubble cosmology and the equivalence principle

    I. Basile, A. Borys, and J. Masias, “Dark bubble cosmology and the equivalence principle”, (2025), arXiv: 2507.03748 [hep-ph]

    2025

  133. [141]

    Dynamical dark energy in 0’B braneworlds

    I. Basile, A. Borys, and J. Masias, “Dynamical dark energy in 0’B braneworlds”, (2025), arXiv:2502.20438 [hep-th]

    2025

  134. [142]

    Non-supersymmetric heterotic strings and chiral CFTs

    H. P. De Freitas, “Non-supersymmetric heterotic strings and chiral CFTs”, JHEP 11, 002 (2024), arXiv: 2402.15562 [hep-th] . 40

    2024

  135. [143]

    Non-supersymmetric non-tachyonic heterotic vacua with reduced rank in various dimensions

    C. Angelantonj, I. Florakis, G. Leone, and D. Perugini, “Non-supersymmetric non-tachyonic heterotic vacua with reduced rank in various dimensions”, JHEP 10, 216 (2024), arXiv: 2407.09597 [hep-th]

    2024

  136. [144]

    New comments on six-dimensional orientifold vacua with reduced rank and unitarity constraints

    G. Leone, “New comments on six-dimensional orientifold vacua with reduced rank and unitarity constraints”, JHEP06, 062 (2025), arXiv:2412.19185 [hep-th]

    2025

  137. [145]

    New Non-Supersymmetric Tachyon- Free Strings

    Z. K. Baykara, H.-C. Tarazi, and C. Vafa, “New Non-Supersymmetric Tachyon- Free Strings”, (2024), arXiv:2406.00185 [hep-th]

    2024

  138. [146]

    String islands, discrete theta angles and the 6D N = (1 , 1) string landscape

    Z. K. Baykara, H. P. De Freitas, and H.-C. Tarazi, “String islands, discrete theta angles and the 6D N = (1 , 1) string landscape”, (2025), arXiv: 2502 . 19468 [hep-th]

    2025

  139. [147]

    Asymmetric Orbifolds, Rank Reduction and Heterotic Islands

    G. Aldazabal, E. Andr´ es, A. Font, K. Narain, and I. G. Zadeh, “Asymmetric Orbifolds, Rank Reduction and Heterotic Islands”, (2025), arXiv: 2501 . 17228 [hep-th]. 41

    2025

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