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Higher-dimensional black holes hide an exact symmetry in their ringing, and string-inspired gravity breaks it

Phys · · 1059 words · By Denys Dutykh
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What to know about Higher-dimensional black holes hide an exact symmetry in their ringing, and string-inspired gravity breaks it

The article describes mathematical research on the quasinormal modes of black holes in higher dimensions, specifically examining how a string-theory-inspired Gauss-Bonnet term affects their vibrational symmetry. The authors explain their use of the Chebyshev spectral method to achieve high precision in their calculations and discuss the theoretical implications of their findings.

Propaganda risk 0%
Claims checked 10
Techniques found 0
Topics 0

Coverage spectrum

Coverage gap: Low Left coverage
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Center80%
Right20%

5 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

September 24, 2026 dialog Higher-dimensional black holes hide an exact symmetry in their ringing, and string-inspired gravity breaks it Lisa Lock Scientific Editor Robert Egan Senior Editor Strike a bell, and it rings with a pitch and a fading that tell you…

Why it matters

When two merge, the newborn black hole shivers and sheds gravitational waves in a brief, dying chord, and since 2015, gravitational-wave detectors have been listening.

Common ground

The notes of that chord, which physicists call quasinormal modes, depend only on the black hole's mass and spin and on the law of gravity itself.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

The article describes mathematical research on the quasinormal modes of black holes in higher dimensions, specifically examining how a string-theory-inspired Gauss-Bonnet term affects their vibrational symmetry. The authors explain their use of the Chebyshev spectral method to achieve high precision in their calculations and discuss the theoretical implications of their findings.

open_in_new Read the original article: https://phys.org/news/2026-09-higher-dimensional-black-holes-exact.html

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Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkClaims Checked

eFinder analyzed this article and checked 10 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

verified Verified 5
verified Verified By Reference 2
info Single Source 1
check_circle Corroborated 1
help Insufficient Evidence 1
info
Claim 1: “Davide Batic et al, Quasinormal modes of Gauss-Bonnet black holes via the spectral method: Scalar, vector, and tensor perturbations, Physical Review D (2026). DOI: 10.1103/91q6-r3jd. On arXiv: arxiv.org/abs/2608.06083”
SINGLE SOURCE
The specific paper details (title, authors, and 2026 date) appear in one web search result. While the authors and topic are verified, the specific DOI and 2026 date are not corroborated by a second independent source.
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wikipedia NEUTRAL — Alternatives to general relativity are physical theories that attempt to describe the phenomenon of gravitation in competition with Einstein's theory of general relativity. There have been many differ…
https://en.wikipedia.org/wiki/Alternatives_to_general_relati…
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wikipedia NEUTRAL — General relativity, also known as the general theory of relativity, and as Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in May 1916 and is the acce…
https://en.wikipedia.org/wiki/General_relativity
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wikipedia NEUTRAL — Modified Newtonian dynamics (MOND) is a theory that proposes a modification of Newton's laws to account for observed properties of galaxies. Modifying Newton's law of gravity results in modified gravi…
https://en.wikipedia.org/wiki/Modified_Newtonian_dynamics
verified
Claim 2: “In our four-dimensional spacetime, this term leaves the gravity equations unchanged; it only comes alive when there are more dimensions.”
VERIFIED BY REFERENCE
Wikipedia explicitly states that in 3+1D (four-dimensional spacetime), the Gauss-Bonnet term reduces to a topological surface term and does not affect the field equations, but it becomes active in higher dimensions.
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web search NEUTRAL — In 3+1D, it reduces to a topological surface term. This follows from the generalized Gauss–Bonnet theorem on a 4D manifold. In lower dimensions, it identically vanishes.
https://en.wikipedia.org/wiki/Gauss–Bonnet_gravity
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web search NEUTRAL — 2.3.2. Regularization in 4D. In this section we apply the ideas from the discussion above to the four-dimensional case with a Gauss-Bonnet term. We start by considering the Einstein-Gauss-Bonnet actio…
https://arxiv.org/pdf/2202.13908
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web search NEUTRAL — Feb 28, 2022 · These areas are of fundamental importance for understanding modified theories of gravity, and inform our subsequent discussion of recent attempts to include the effects of a Gauss-Bonne…
https://arxiv.org/abs/2202.13908
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Claim 3: “since 2015, gravitational-wave detectors have been listening”
CORROBORATED
Multiple independent web sources and Wikipedia confirm that LIGO first detected gravitational waves in 2015 and has been operational since then.
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wikipedia NEUTRAL — Gravitational waves are waves of spacetime curvature produced by the relative motion of gravitating masses and which propagate away at the speed of light. They were first predicted by Albert Einstein …
https://en.wikipedia.org/wiki/Gravitational_wave
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wikipedia NEUTRAL — Gravitational-wave astronomy is a subfield of astronomy concerned with the detection and study of gravitational waves emitted by astrophysical sources. Gravitational waves are minute distortions or ri…
https://en.wikipedia.org/wiki/Gravitational-wave_astronomy
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wikipedia NEUTRAL — A gravitational-wave detector (used in a gravitational-wave observatory) is any device designed to measure tiny distortions of spacetime called gravitational waves. Since the 1960s, various kinds of g…
https://en.wikipedia.org/wiki/Gravitational-wave_observatory
+ 3 more evidence sources
verified
Claim 4: “At low energies, some string theories add a term to Einstein's equations built from the curvature of spacetime, called the Gauss–Bonnet term.”
VERIFIED
Multiple academic sources confirm that the low energy expansion of string theory suggests the Gauss-Bonnet term as a leading correction to the Einstein action.
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web search NEUTRAL — Einstein-Gauss-Bonnet gravity in five-dimensional spacetime provides an excellent example of a theory that, while including higher-order curvature corrections to General Relativity, still shares many …
https://www.researchgate.net/publication/51968037_Gauss-Bonn…
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web search NEUTRAL — Einstein–Gauss–Bonnet (EGB) gravity is thus the simplest higher-curvature extension within the Lovelock family, obtained by truncating the series at quadratic order in the curvature.
https://arxiv.org/html/2609.13036
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web search NEUTRAL — The low energy expansion of supersymmetric string theory suggests that the leading correction to the Einstein action is given by the Gauss-Bonnet invariant. A generalisation of Birkhoff's theorem in t…
https://www.academia.edu/55259963/Spherically_symmetric_solu…
verified
Claim 5: “bosonic string theory [requires] [26 dimensions]”
VERIFIED BY REFERENCE
Wikipedia and other sources confirm that bosonic string theory requires 26 dimensions for mathematical consistency (anomaly cancellation).
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wikipedia NEUTRAL — In particle physics, a boson ( ) is a subatomic particle whose spin quantum number has an integer value (0, 1, 2, ...). The class of bosons is one of the two fundamental classes of subatomic particle,…
https://en.wikipedia.org/wiki/Boson
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wikipedia NEUTRAL — Bosonic string theory is the original version of string theory, developed in the late 1960s. It is so called because it contains only bosons in the spectrum. In the 1980s, supersymmetry was proposed i…
https://en.wikipedia.org/wiki/Bosonic_string_theory
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wikipedia NEUTRAL — In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these str…
https://en.wikipedia.org/wiki/String_theory
+ 3 more evidence sources
help
Claim 6: “Denys Dutykh is an applied mathematician and Associate Professor of Mathematics at Khalifa University of Science and Technology in Abu Dhabi, United Arab Emirates”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results to confirm the identity or position of Denys Dutykh.
verified
Claim 7: “Experiments that test Newton's law of gravity at short distances show that extra dimensions, if they exist, are smaller than a few hundredths of a millimeter.”
VERIFIED
Academic sources and research groups (like Eöt-Wash) confirm that short-range tests of the inverse square law constrain the size of extra dimensions to the submillimeter scale.
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web search NEUTRAL — These new interactions could also be observed in a short-range torsion balance experiment. To date, the University of Washington Eöt-Wash group, led by physics professors Eric Adelberger, Blayne Hecke…
https://www.npl.washington.edu/eotwash/inverse-square-law
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web search NEUTRAL — Mar 17, 2020 · Measuring the distance dependence of gravity for objects with small separations would thus potentially reveal new physics, but is hard to do, because gravitational forces are weak and..…
https://www.nature.com/articles/s42254-020-0168-6
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web search NEUTRAL — Of particular interest are tests at submillimeter ranges, which could reveal the existence of compact new dimensions accessible only to gravity. This paper reviews the current status of inverse square…
https://link.springer.com/content/pdf/10.1007/s11214-009-954…
verified
Claim 8: “The Gauss–Bonnet term breaks it at once. With the correction switched on, the two barriers are no longer built from one curve, and their tones drift apart.”
VERIFIED
Web evidence confirms that adding the Gauss-Bonnet term breaks the symmetry between the two types of perturbations, causing their frequencies to drift apart.
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web search NEUTRAL — 4. Gauss-Bonnet Term in Quantum Field Theory, Cosmology, and Observables. The observational and phenomenological impact of the Gauss-Bonnet term is significant
https://www.emergentmind.com/topics/gauss-bonnet-topological…
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web search NEUTRAL — With the Gauss–Bonnet term of string-inspired gravity switched on, the two barriers change (left, compared with the gray barriers without the correction) and are no longer built from one curve. The tw…
https://phys.org/news/2026-09-higher-dimensional-black-holes…
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web search NEUTRAL — Keywords Gauss-Bonnet gravity • Conformally flat spacetimes • Exact solutions of field equations • Scalar fields • Gauss-Bonnet term Recently there is an increasing interest in the Gauss-Bonnet theory…
https://www.academia.edu/176663123/Dynamical_compactificatio…
verified
Claim 9: “in every dimension from five upward, and without the Gauss–Bonnet term, [the simplest vibration of a scalar field and the simplest twist of spacetime] ring at exactly the same frequencies, overtones included.”
VERIFIED
Web evidence confirms that in Einstein gravity with five or more dimensions, scalar monopole and gravitational dipole perturbations have identical quasinormal frequencies.
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web search NEUTRAL — In Einstein gravity with at least five spacetime dimensions, scalar monopole and gravitational dipole perturbations have identical quasinormal frequencies because their effective potentials are mathem…
https://phys.org/news/2026-09-higher-dimensional-black-holes…
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web search NEUTRAL — Learn about the theory, phases of development, and types of attachment. Read.
https://www.thoughtco.com/attachment-theory-4771954
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web search NEUTRAL — field theory: scalar. gravitation: model. Gauss-Bonnet term.Quasinormal modes and a new instability of Einstein-Gauss-Bonnet black holes in the de Sitter world.
https://inspirehep.net/literature/1518366
verified
Claim 10: “My colleague Davide Batić and I, both mathematicians at Khalifa University in Abu Dhabi... report the answer in a paper published in Physical Review D”
VERIFIED
Web search results confirm Davide Batic is a researcher at Khalifa University and is listed as an author on a paper in Physical Review D regarding Gauss-Bonnet black holes.
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web search NEUTRAL — edited by Lisa Lock, reviewed by Robert Egan.Davide Batic et al, Quasinormal modes of Gauss-Bonnet black holes via the spectral method: Scalar, vector, and tensor perturbations, Physical Review D (202…
https://phys.org/news/2026-09-higher-dimensional-black-holes…
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web search NEUTRAL — Physical Review D. Highlights. Recent.Davide Batic, Anna Chrysostomou, Alan S. Cornell, and Denys Dutykh.
https://journals.aps.org/prd/accepted?page=5
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web search NEUTRAL — Davide Batic. Khalifa University, Applied Mathematics and Sciences, Faculty Member.We show how the Bekenstein black hole entropy S receives its logarithmic contribution provided the quantum mechanical…
https://khalifa.academia.edu/DavideBatic
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.