Physicists Modeled Five-Dimensional Primordial Black Holes
The research suggests these high-dimensional objects may evaporate more slowly than four-dimensional counterparts.
Updated on Sept. 25, 2026 in Physics
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Physicists at Lehman College have modeled the existence of five-dimensional primordial black holes, providing a framework for how these objects might behave within a universe with an extra compactified dimension. This study, currently awaiting publication in the journal Physical Review D, explores the theoretical physics of objects formed shortly after the Big Bang.
Why it matters
Understanding five-dimensional black holes could offer a method to detect unobservable extra dimensions. Because these objects theoretically undergo slower evaporation via Hawking radiation, they might persist longer than standard four-dimensional black holes.
The researchers theorize that a black hole with an event horizon smaller than one micron acts as a five-dimensional object, escaping the Gregory-Laflamme instability that typically affects four-dimensional black holes. This model suggests a slower mass-loss rate compared to standard expectations.
The players
Lehman College
A public institution in the United States that hosts research into high-energy theoretical physics and cosmology.
KM3NeT observatory
A neutrino telescope located in the Mediterranean Sea that tracks high-energy particles to study astrophysical phenomena.
The details
The model posits that our four-dimensional universe exists as a brane—a surface within a higher-dimensional space—while a fifth dimension is compactified to a scale of roughly one micron. When a black hole's event horizon is smaller than this scale, its gravitational influence extends into the fifth dimension. These primordial objects formed from rapid phase transitions during the cooling of the early universe or the collapse of cosmic strings.
Timeline
13.8 billion years ago: The Big Bang occurred.
Present day: The theoretical survival period for these primordial black holes.
The Tech Race
This work advances the theoretical understanding of high-dimensional gravity, extending beyond the established Gregory-Laflamme instability constraints. It provides a new target for researchers using observatories like KM3NeT to hunt for anomalous signals that defy four-dimensional models.
This research is purely theoretical and does not offer immediate applications or changes for current technology or industry. It serves as a scientific benchmark that could guide future experimental efforts to detect non-visible dimensions using high-energy particle observatories.
The takeaway
The research suggests that compactified extra dimensions could stabilize black holes that would otherwise evaporate quickly. Watch for the forthcoming peer-reviewed findings in Physical Review D to see how these stability models align with existing neutrino observations.
Further reading
For more on the latest research in high-energy theoretical frameworks, visit Physics.
Source note: This article includes information reported by RBC-Ukraine.
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