{"total":20,"items":[{"citing_arxiv_id":"2605.19673","ref_index":19,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Spin-Hair Induced Chaos of Spinning Test Particles in Rotating Hairy Black Holes","primary_cat":"gr-qc","submitted_at":"2026-05-19T11:04:10+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Spinning test particles around rotating hairy black holes show finite-time instability in localized regions of the (spin, hair-parameter) plane that reorganize the strong-field phase space compared to Kerr.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.15566","ref_index":11,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Charge-dependent scalarization of Einstein- Euler-Heisenberg black holes","primary_cat":"gr-qc","submitted_at":"2026-05-15T03:16:58+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Charge-dependent scalarization of EEH black holes yields stable scalarized branches for 0<q<1.115 with positive α and for q>1.115 with negative α.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.13036","ref_index":36,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Inspiral gravitational waveforms from charged compact binaries with scalar hair","primary_cat":"gr-qc","submitted_at":"2026-05-13T05:44:47+00:00","verdict":"UNVERDICTED","verdict_confidence":"MODERATE","novelty_score":7.0,"formal_verification":"none","one_line_summary":"In Einstein-scalar-Maxwell theories, charged compact binaries produce gravitational waveforms containing a leading -1 post-Newtonian dipole correction controlled by one deviation parameter b.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"[33] H. O. Silva, J. Sakstein, L. Gualtieri, T. P. Sotiriou, and E. Berti,Phys. Rev. Lett.120, 131104 (2018), arXiv:1711.02080 [gr-qc]. [34] G. Antoniou, A. Bakopoulos, and P. Kanti,Phys. Rev. Lett.120, 131102 (2018), arXiv:1711.03390 [hep-th]. [35] T. Kobayashi, M. Yamaguchi, and J. Yokoyama,Prog. Theor. Phys.126, 511 (2011), arXiv:1105.5723 [hep-th]. [36] T. Kobayashi, H. Motohashi, and T. Suyama,Phys. Rev. D85, 084025 (2012), [Erratum: Phys. Rev. D 96, 109903 (2017)], arXiv:1202.4893 [gr-qc]. [37] T. Kobayashi, H. Motohashi, and T. Suyama,Phys. Rev. D89, 084042 (2014), arXiv:1402.6740 [gr-qc]. [38] R. Kase and S. Tsujikawa,Phys. Rev. D105, 024059 (2022), arXiv:2110.12728 [gr-qc]. [39] T. Anson, E."},{"citing_arxiv_id":"2605.04224","ref_index":16,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Black-Hole Scattering in Einstein-scalar-Gauss-Bonnet: Numerical Relativity Meets Analytics","primary_cat":"gr-qc","submitted_at":"2026-05-05T19:08:04+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":8.0,"formal_verification":"none","one_line_summary":"Numerical relativity simulations of black hole scattering in Einstein-scalar-Gauss-Bonnet gravity agree closely with effective-one-body analytic predictions.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"alized scalar-tensor gravity: An explicit example, Phys. Rev. D90, 124063 (2014), arXiv:1408.1698 [gr-qc]. [14] T. P. Sotiriou, Black Holes and Scalar Fields, Class. Quant. Grav.32, 214002 (2015), arXiv:1505.00248 [gr- qc]. [15] T. Damour and G. Esposito-Far` ese, Nonperturbative strong field effects in tensor - scalar theories of gravi- tation, Phys. Rev. Lett.70, 2220 (1993). [16] H. O. Silva, J. Sakstein, L. Gualtieri, T. P. Sotiriou, and E. Berti, Spontaneous scalarization of black holes and compact stars from a Gauss-Bonnet coupling, Phys. Rev. Lett.120, 131104 (2018), arXiv:1711.02080 [gr-qc]. [17] D. D. Doneva and S. S. Yazadjiev, New Gauss-Bonnet Black Holes with Curvature-Induced Scalarization in Ex- tended Scalar-Tensor Theories, Phys."},{"citing_arxiv_id":"2604.27811","ref_index":16,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Spin-Induced Nonlinear Scalarization of Kerr Black Holes in Einstein-scalar-Gauss-Bonnet Gravity","primary_cat":"gr-qc","submitted_at":"2026-04-30T12:54:56+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Kerr black holes in an EsGB model without linear instability undergo nonlinear scalarization above spin 0.5, existing in a finite low-mass high-spin wedge rather than a narrow band.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"tating settings [14-20]. Similar scalarization mechanisms have also been investigated in related models, including Einstein-Maxwell-scalar theories [21-27], Einstein-Chern-Simons- scalar theories [28, 29], and other black hole backgrounds [30, 31]. In the rotating EsGB case, scalarized Kerr black holes were first constructed with an exponential coupling func- tion [16], and later with a simple quadratic coupling [17]. Subsequent studies then showed that sufficiently rapid rotation can also trigger spontaneous scalarization, leading to spin- induced scalarized black holes beyond the Kerr family [18-20]. This phenomenon can be traced to the fact that rotation changes the sign structure of the Gauss-Bonnet invariant"},{"citing_arxiv_id":"2604.25100","ref_index":45,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Thermodynamic Phase Transitions in Einstein-Maxwell-Scalar-Gauss-Bonnet Gravity","primary_cat":"hep-th","submitted_at":"2026-04-28T01:10:53+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Scalarization in EMSGB gravity enables free-energy crossings between scalarized and Reissner-Nordström black holes, producing up to three phase transitions whose order changes with coupling strength.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"[43] T. Damour and G. Esposito-Farese, \"Tensor - scalar gravity and binary pulsar experiments,\"Phys. Rev. D54(1996) 1474-1491,arXiv:gr-qc/9602056. [44] D. D. Doneva and S. S. Yazadjiev, \"New Gauss-Bonnet Black Holes with Curvature-Induced Scalarization in Extended Scalar-Tensor Theories,\"Phys. Rev. Lett.120no. 13, (2018) 131103,arXiv:1711.01187 [gr-qc]. [45] H. O. Silva, J. Sakstein, L. Gualtieri, T. P. Sotiriou, and E. Berti, \"Spontaneous scalarization of black holes and compact stars from a Gauss-Bonnet coupling,\"Phys. Rev. Lett.120no. 13, (2018) 131104,arXiv:1711.02080 [gr-qc]. [46] C. A. R. Herdeiro, E. Radu, N. Sanchis-Gual, and J. A. Font, \"Spontaneous Scalarization of Charged Black Holes,\"Phys."},{"citing_arxiv_id":"2604.24867","ref_index":40,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Underlying mechanisms of phase transitions in scalar-tensor theories","primary_cat":"gr-qc","submitted_at":"2026-04-27T18:00:17+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Landau coefficients for scalarization phase transitions are calculated from first principles via reduction of the theory's energy functional to an effective energy function.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"of its central value at the stellar surface. Note that the βdependence is quite weak, at least inside the star. In the third and last step of our algorithm, we insert the above form of the scalar field into the energy func- tional (35) to obtain an energy function. In other words, for a given baryon massM b, we want to obtain the for- mula10 MADM =M 0 +a ϕ 2 c + 1 2 b ϕ4 c +· · ·.(40) Note thatM ADM is a function of both the baryon mass Mb and the scalar field strength as in Eq. (7), but we suppressed theM b dependence of the coefficients, since we are only interested in the scalar field dependence of the energy for a fixedM b value. In other words, we want to learn what happens to the total energy when a neu- tron star with a fixed number of baryons (no change in"},{"citing_arxiv_id":"2604.21298","ref_index":5,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Phase transition structure of scalarized neutron stars: the effect of rotation and linear coupling","primary_cat":"gr-qc","submitted_at":"2026-04-23T05:29:22+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Linear coupling and rotation in scalar-tensor theories produce a complex phase transition landscape for scalarized neutron stars, with rotation increasing critical masses and Landau theory revealing overlooked solution branches.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Ramazano˘ glu, H. O. Silva, T. P. Sotiriou, and S. S. Yazadjiev, Spontaneous scalarization, Rev. Mod. Phys.96, 015004 (2024), arXiv:2211.01766 [gr-qc]. [4] D. D. Doneva and S. S. Yazadjiev, New Gauss-Bonnet Black Holes with Curvature-Induced Scalarization in Ex- tended Scalar-Tensor Theories, Phys. Rev. Lett.120, 131103 (2018), arXiv:1711.01187 [gr-qc]. [5] H. O. Silva, J. Sakstein, L. Gualtieri, T. P. Sotiriou, and E. Berti, Spontaneous scalarization of black holes and compact stars from a Gauss-Bonnet coupling, Phys. Rev. Lett.120, 131104 (2018), arXiv:1711.02080 [gr-qc]. [6] G. Antoniou, A. Bakopoulos, and P. Kanti, Evasion of No-Hair Theorems and Novel Black-Hole Solutions in Gauss-Bonnet Theories, Phys."},{"citing_arxiv_id":"2604.20153","ref_index":7,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Thermodynamics and phase transitions of nonlinearly scalarized black holes in Einstein-scalar-Gauss-Bonnet theory","primary_cat":"gr-qc","submitted_at":"2026-04-22T03:33:47+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Nonlinearly scalarized black holes in Einstein-scalar-Gauss-Bonnet theory undergo a first-order phase transition from Schwarzschild black holes with non-zero latent heat.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Esposito-Farese, \"Nonperturbative strong field effects in tensor - scalar theories of gravitation,\" Phys. Rev. Lett.70(1993), 2220-2223 [6] D. D. Doneva and S. S. Yazadjiev, \"New Gauss-Bonnet Black Holes with Curvature- Induced Scalarization in Extended Scalar-Tensor Theories,\" Phys. Rev. Lett.120, no.13, 131103 (2018) [arXiv:1711.01187 [gr-qc]]. [7] H. O. Silva, J. Sakstein, L. Gualtieri, T. P. Sotiriou and E. Berti, \"Spontaneous scalar- ization of black holes and compact stars from a Gauss-Bonnet coupling,\" Phys. Rev. Lett.120, no.13, 131104 (2018) [arXiv:1711.02080 [gr-qc]]. 13 [8] G. Antoniou, A. Bakopoulos and P. Kanti, \"Evasion of No-Hair Theorems and Novel Black-Hole Solutions in Gauss-Bonnet Theories,\" Phys."},{"citing_arxiv_id":"2604.15240","ref_index":97,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Boson star-black hole binaries: initial data and head-on collisions","primary_cat":"gr-qc","submitted_at":"2026-04-16T17:15:14+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A one-body conformal-factor correction stabilizes boson star-black hole initial data, enabling gravitational-wave analysis that shows higher multipoles can discriminate mixed mergers from pure black-hole binaries.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Sotiriou, and Stoytcho S. Yazad- 19 jiev, \"Spontaneous scalarization,\" Rev. Mod. Phys.96, 015004 (2024), arXiv:2211.01766 [gr-qc]. [96] Qian Chen, Zhuan Ning, Yu Tian, Bin Wang, and Cheng-Yong Zhang, \"Nonlinear dynamics of hot, cold, and bald Einstein-Maxwell-scalar black holes in AdS spacetime,\" Phys. Rev. D108, 084016 (2023), arXiv:2307.03060 [gr-qc]. [97] Hong Guo, Hang Liu, and Yun Soo Myung, \"Scalar-hairy AdS black hole in the Einstein-Maxwell- scalar theory: first-order phase transition with a critical point,\" Eur. Phys. J. C86, 204 (2026), arXiv:2512.22433 [gr-qc]. [98] Hector O. Silva, Helvi Witek, Matthew Elley, and Nicol' as Yunes, \"Dynamical Descalarization in Binary Black Hole Mergers,\" Phys."},{"citing_arxiv_id":"2604.13614","ref_index":6,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Scalarizations of magnetized Reissner-Nordstr\\\"om black holes induced by parity-violating and parity-preserving interactions","primary_cat":"gr-qc","submitted_at":"2026-04-15T08:27:26+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Magnetic fields lower the scalarization threshold for electromagnetic and gravitational Chern-Simons couplings but produce opposite trends on the two Gauss-Bonnet branches, with nonlinear terms converting exponential growth into bounded oscillations.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"lutions with curvature induced scalarization in the ex- tended Gauss-Bonnet scalar-tensor theories,\" JCAP04, 011 (2018) [arXiv:1712.03715 [gr-qc]]. [5] H. O. Silva, J. Sakstein, L. Gualtieri, T. P. Sotiriou and E. Berti, \"Spontaneous scalarization of black holes and compact stars from a Gauss-Bonnet coupling,\" Phys. Rev. Lett.120, no.13, 131104 (2018) [arXiv:1711.02080 [gr-qc]]. [6] D. D. Doneva and S. S. Yazadjiev, \"New Gauss-Bonnet Black Holes with Curvature-Induced Scalarization in Extended Scalar-Tensor Theories,\" Phys. Rev. Lett. 120, no.13, 131103 (2018) [arXiv:1711.01187 [gr-qc]]. [7] C. A. R. Herdeiro, E. Radu, N. Sanchis-Gual and J. A. Font, \"Spontaneous Scalarization of Charged Black Holes,\" Phys. Rev. Lett.121, no."},{"citing_arxiv_id":"2604.09350","ref_index":88,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Gravitational Memory from Hairy Binary Black Hole Mergers","primary_cat":"gr-qc","submitted_at":"2026-04-10T14:22:52+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":8.0,"formal_verification":"none","one_line_summary":"Gravitational memory from hairy binary black hole mergers in scalar-Gauss-Bonnet gravity differs from GR by a few percent due to altered nonlinear dynamics, with direct scalar contributions suppressed, and including memory increases GR-sGB mismatch by more than an order of magnitude.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"[86] P. Kanti, N. E. Mavromatos, J. Rizos, K. Tamvakis, and E. Winstanley, \"Dilatonic black holes in higher curvature string gravity,\"Phys. Rev. D54(1996) 5049-5058,arXiv:hep-th/9511071. [87] B. Kleihaus, J. Kunz, and E. Radu, \"Rotating Black Holes in Dilatonic Einstein-Gauss-Bonnet Theory,\" Phys. Rev. Lett.106(2011) 151104,arXiv:1101.2868 [gr-qc]. [88] T. P. Sotiriou and S.-Y. Zhou, \"Black hole hair in generalized scalar-tensor gravity,\"Phys. Rev. Lett. 112(2014) 251102,arXiv:1312.3622 [gr-qc]. [89] D. D. Doneva and S. S. Yazadjiev, \"New Gauss-Bonnet Black Holes with Curvature-Induced Scalarization in Extended Scalar-Tensor Theories,\" Phys. Rev. Lett.120no. 13, (2018) 131103, arXiv:1711.01187 [gr-qc]."},{"citing_arxiv_id":"2604.08668","ref_index":24,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Minimum mass, maximum charge and hyperbolicity in scalar Gauss-Bonnet gravity","primary_cat":"gr-qc","submitted_at":"2026-04-09T18:00:16+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"In scalar Gauss-Bonnet gravity, black hole solutions below a tunable minimum mass lose hyperbolicity in perturbations, corresponding to EFT breakdown, but scalar charge stays bounded above.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"pling (f=e ϕ) of Einstein-dilaton GB gravity [2], or the linear coupling (f=ϕ) of shift-symmetric GB grav- ity [3, 4]. In these theories, the BHs are necessarily dif- ferent from those of GR, and have non-trivial scalar field profiles (we call such solutionshairy BHs). Other sGB theories, in whichf(ϕ) has a stationary point (e.g. the quadraticf=ϕ 2 [23] or the Gaussianf= 1−e − 3 2 ϕ2 [24] couplings), allow both Kerr BHs and hairy BHs; in this case the process ofspontaneous scalarizationcan occur, in which a Kerr BH dynamically grows a scalar field pro- file [23-27]. A well-posed initial value formulation exists for sGB gravity theories [28], under the assumption of weak cou- pling. For BH dynamics, this assumption is satisfied when the horizon radiusr h (i."},{"citing_arxiv_id":"2604.06592","ref_index":10,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Spin-charge induced scalarization of Kerr-Newman black holes in the Einstein-Maxwell-scalar theory with scalar potential","primary_cat":"gr-qc","submitted_at":"2026-04-08T02:23:04+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Kerr-Newman black holes in EMS theory with scalar potential scalarize for spins below a threshold set by charge, scalar mass, and coupling strength.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"¯F 2f ′′(0) +U ′′(0) i .(9) This instability is characterized by the presence of a negative mass term (µ2 eff <0)in the linearized scalar equation. Until now, many authors adopted different forms of the coupling functionf(ϕ)with 4 coupling parameterα, exponential form (eαϕ2 ) [12], quadratic form (1 +αϕ2) [13], and hyperbolic cosine form (cosh[ √ 2αϕ]) [10]. We introduce an interesting potential function asU(ϕ)=m2 ϕϕ2 with m2 ϕ mass of the scalar, as shown in Ref. [30]. Without loss of generality, we do not choose any specific form of coupling functionf(ϕ)but require thatf(ϕ)satisfies [10, 11] f(0) = 1, f ′(0) = 0, f ′′(0) = 2α,(10) wheref(0) = 1implies the presence of the Maxwell term even for non-scalar coupling,f ′(0) = 0"},{"citing_arxiv_id":"2603.10461","ref_index":5,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Gauss-Bonnet scalarization of charged qOS-black holes","primary_cat":"gr-qc","submitted_at":"2026-03-11T06:23:32+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Charged qOS black holes undergo Gauss-Bonnet scalarization in two regimes, producing linearly stable scalarized solutions for specific ranges of the action parameter α and coupling λ.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2601.22914","ref_index":25,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Exact black holes and black branes with bumpy horizons supported by superfluid pions","primary_cat":"hep-th","submitted_at":"2026-01-30T12:34:35+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Exact solutions in Einstein-SU(2) sigma model yield black holes and branes with bumpy horizons stabilized by integer vorticity of superfluid pions.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2511.14047","ref_index":63,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Exact, non-singular black holes from a phantom DBI Field as primordial dark matter","primary_cat":"gr-qc","submitted_at":"2025-11-18T01:52:43+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Exact non-singular black holes from the phantom DBI field evaporate to gram-mass relics, opening a new mass window for primordial black holes as dark matter.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2510.08686","ref_index":27,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Non-closed scalar charge in four-dimensional Einstein-scalar-Gauss-Bonnet black hole thermodynamics","primary_cat":"hep-th","submitted_at":"2025-10-09T18:00:04+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"A covariant framework reveals non-closed scalar charges with bulk contributions in ESGB black holes that become closed under shift symmetry and interpret spontaneous scalarization via the Smarr formula.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2503.12263","ref_index":180,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"The Science of the Einstein Telescope","primary_cat":"gr-qc","submitted_at":"2025-03-15T21:04:14+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":3.0,"formal_verification":"none","one_line_summary":"The paper provides state-of-the-art predictions for the Einstein Telescope's impact on fundamental physics, cosmology, compact-object astrophysics, and multi-messenger astronomy across its proposed configurations.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2404.19521","ref_index":8,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Existence of nonlinearly scalarized black holes in Einstein-scalar-Gauss-Bonnet theory with polynomial couplings","primary_cat":"gr-qc","submitted_at":"2024-04-30T12:50:10+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Nonlinearly scalarized black holes exist in EsGB theory for couplings ζ(φ)=αφ⁴−βφ⁸ and ζ(φ)=αφ⁴−βφ⁶ (but not pure quartic), with instability thresholds for Gaussian pulses and universal probe-limit branches that depend on β when backreaction is included.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null}],"limit":50,"offset":0}