{"total":11,"items":[{"citing_arxiv_id":"2605.19002","ref_index":52,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Uniqueness of D=8 minimal supergravity with two vector multiplets","primary_cat":"hep-th","submitted_at":"2026-05-18T18:23:45+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"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.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.16188","ref_index":23,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Non-Invertible Symmetries in Compactified Supergravities","primary_cat":"hep-th","submitted_at":"2026-05-15T17:07:08+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Non-invertible symmetry defects from 11D supergravity descend to Type IIA, splitting the Bianchi sector into invertible H[3] and twisted non-invertible F[4] parts with a BF-type auxiliary sector.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.15276","ref_index":7,"ref_count":2,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Bordisms between 9d type IIB supergravities and commutator widths of duality groups","primary_cat":"hep-th","submitted_at":"2026-05-14T18:00:03+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Proposes a refinement of the Swampland Cobordism Conjecture for duality groups, arguing that diverging commutator widths necessitate infinitely many duality defects to realize monodromies in 9d supergravity bordisms.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"(1995) 179 [hep-th/9408083]. [4] C. M. Hull and P. K. Townsend,Unity of superstring dualities,Nucl. Phys. B438(1995) 109 [hep-th/9410167]. [5] E. Witten,String theory dynamics in various dimensions,Nucl. Phys. B443(1995) 85 [hep-th/9503124]. [6] P. K. Townsend,The eleven-dimensional supermembrane revisited,Phys. Lett. B350(1995) 184 [hep-th/9501068]. [7] P. Horava and E. Witten,Heterotic and type I string dynamics from eleven-dimensions,Nucl. Phys. B460(1996) 506 [hep-th/9510209]. [8] P. Horava and E. Witten,Eleven-dimensional supergravity on a manifold with boundary,Nucl. Phys. B475(1996) 94 [hep-th/9603142]. [9] A. Sen,Developments in superstring theory, in29th International Conference on High-Energy"},{"citing_arxiv_id":"2605.11068","ref_index":19,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Towards the Realization of the Dark Dimension Scenario in Ho\\v{r}ava-Witten Theory","primary_cat":"hep-th","submitted_at":"2026-05-11T18:00:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Hořava-Witten theory offers a potential string embedding of the dark dimension by localizing the Standard Model on the 11th interval, with symmetric tadpole cancellation and an infinite-distance limit helping derive the scalar potential and couplings from Schwinger integrals.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"with a single unstabilized direction (see [18-20] for recent attempts). For instance, when trying to construct an intersectingD-brane model in 10D perturbative string theory, one 2 faces the problem of singling out the large extra dimension and stabilizing all the remaining moduli of the orthogonal five dimensional manifold via e.g. fluxes and instantons. As proposed in [19], from this perspective eleven dimensional M-theory or Hoˇ rava-Witten (HW) theory [21,22] appears as a more natural candidate, in particular when considering it as the strong coupling limit of type IIA theory, or theE 8 ×E 8 heterotic string, respectively. Here, one compactifies M-theory on a seven dimensional space of the type X×S 1 , X× S1 Z2 , (1."},{"citing_arxiv_id":"2605.05333","ref_index":9,"ref_count":2,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Towards Wedge Construction of Four-Dimensional Non-Supersymmetric Theories and Torsion Classes","primary_cat":"hep-th","submitted_at":"2026-05-06T18:05:32+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Proposes G2 torsion classes as a characterization tool for torsion and supersymmetry breaking in M-theory on deformed K3 fibrations, leading to non-supersymmetric 4D theories via reductions to Type 0A and heterotic strings.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.22915","ref_index":36,"ref_count":2,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Heterotic Ouroboros","primary_cat":"hep-th","submitted_at":"2026-04-24T18:00:00+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"A consistent set of rules from M-theory on S¹ ∨ S¹ combined with type I' enhancements reproduces the light spectra, gauge groups, and global structure of ten-dimensional heterotic string theories, with indications of junctions between them.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Sen, \"NonBPS states and Branes in string theory,\" inAdvanced School on Supersymmetry in the Theories of Fields, Strings and Branes, pp. 187-234. 1, 1999. arXiv:hep-th/9904207. [34] S. Hellerman and M. Kleban, \"Dynamical Cobordisms in General Relativity and String Theory,\"JHEP02(2011) 022,arXiv:1009.3277 [hep-th]. [35] J. McNamara and C. Vafa, \"Cobordism Classes and the Swampland,\" arXiv:1909.10355 [hep-th]. [36] P. Horava and E. Witten, \"Heterotic and Type I string dynamics from eleven dimensions,\"Nucl. Phys. B460(1996) 506-524,arXiv:hep-th/9510209. [37] P. Horava and E. Witten, \"Eleven-dimensional supergravity on a manifold with boundary,\"Nucl. Phys. B475(1996) 94-114,arXiv:hep-th/9603142. 34 [38] J. Polchinski and E. Witten, \"Evidence for heterotic - type I string duality,\"Nucl."},{"citing_arxiv_id":"2604.07433","ref_index":47,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"A Duality Web for Non-Supersymmetric Strings","primary_cat":"hep-th","submitted_at":"2026-04-08T18:00:00+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A duality web is proposed in which Z2 quotients of M-theory on S1 vee S1 and F-theory on (S1 vee S1) x S1 map to 0A/0B orientifolds and non-supersymmetric E-type and D-type heterotic strings, providing evidence for existing dualities.","context_count":1,"top_context_role":"background","top_context_polarity":"support","context_text":"wherec 2,Ei are 2nd Chern classes in the56of theithE 7 factor andc 2,j are 2nd Chern classes in the2of thejthSU(2) factor. In contrast, the local anomalies ofE 8,2 andE 8 ×SO(16) cancel trivially, without the need for a Green-Schwarz term. This factorization (2.18), together with the Green-Schwarz mechanism, is reminiscent of the Hoˇ rava-Witten (HW) construction [47, 48] of supersymmetricE 8×E8. In that context, the factorization is crucial for cancelling the anomalous variation of bulk topological terms in eleven-dimensional M- theory. In the present case, however, there is no direct analog of this mechanism. Moreover, 8The termX (E7×SU(2)) 2 8 is related to the anomaly polynomial of the non-supersymmetric NS5 brane"},{"citing_arxiv_id":"2604.04601","ref_index":53,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Cosmic Inflation From Regular Black Holes","primary_cat":"gr-qc","submitted_at":"2026-04-06T11:31:03+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Regular black holes in the bulk of quasi-topological gravity drive a de Sitter inflationary phase on the brane at small scales, with e-fold number set by the ratio of black hole radius to higher-curvature scale.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"ij =−g ij 1 (D−2)a D−3 ˙a d dτ (aD−2Π± τ τ),(3.9) wherei, jdenote the angular components. In this expression, we have a± n :=n b ±∂ba ,(3.10) wheren a ± is the normal vector on each side of the brane, normalized bygabna ±nb ± = +1. Z2 symmetry Our analysis describes so far a general spherical thin shell. Motivated by the orbifold construc- tion of [53], we now imposeZ2 symmetry across the brane, which is a standard assumption - 8 - in braneworld models [48-52]. In order to achieve this, on the one hand, we set the mass parameter to be the same on both sides of the shellM+ =M − ≡M, which also implies that f+ =f − =:f .(3.11) On the other hand, the characteristic feature ofZ2 symmetry is that we choose the normal"},{"citing_arxiv_id":"2603.25786","ref_index":35,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Ho\\v{r}ava-Witten theory on ${\\mathbf{S}}^1\\vee{\\mathbf{S}}^1$ as type 0 orientifold","primary_cat":"hep-th","submitted_at":"2026-03-26T18:00:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Hořava-Witten theory on S¹∨S¹ is dual to a type 0B orientifold with SO(16)^4 gauge group, explaining gauge group doubling via the geometry's junction and revealing two variants from E8 wall orientations.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2603.24667","ref_index":3,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"The Art of Branching: Cobordism Junctions of 10d String Theories","primary_cat":"hep-th","submitted_at":"2026-03-25T18:00:02+00:00","verdict":"CONDITIONAL","verdict_confidence":"MODERATE","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Explicit worldsheet constructions of 9d junctions joining several 10d string theories via generalized RG flow interpolations and closed tachyon condensation, providing dynamical realizations of multi-theory cobordisms.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2410.21372","ref_index":38,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Morse-Bott inequalities, Topology Change and Cobordisms to Nothing","primary_cat":"hep-th","submitted_at":"2024-10-28T18:00:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Morse-Bott inequalities yield homology bounds and topology-change counts for generic cobordisms to nothing in string theory compactifications.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"expands with a velocity asymptotic to that of light, and as we approach its surface both the lower-dimensional curvature and the (normalized) scalar controlling the size of the the circle blow up. This type of vacuum decay, dubbed Bubble of Nothing (BoN) has been generalized to other compactification manifolds and internal ingredients [16-37]. Bubbles of nothing and other spacetime ending configurations, such as Hoˇ rava-Witten walls [38, 39], might seem at first a curiosity without further implications. However, as shown in [40], this is not the case at all. TheSwampland program [41-47], studies the set of constrains that an EFT with a consistent UV completion to Quantum Gravity must fulfill. One of the most established Swampland Conjectures is the No Global Symmetries conjecture [48-50],"}],"limit":50,"offset":0}