Aug 12, 2013

Micro Black Holes in the Taillights — Another Glance Back

Posted by in categories: existential risks, particle physics, physics

Recent discussions on the properties of micro-black-holes threw open sufficient question to reignite some interest in the subject (pardon to those exhausted of reading on the subject here at the Lifeboat Foundation). A claim made by physicists at the University of Innsbruck in Austria, that a new attractive force arises from black-body radiation [1] makes one speculate if a similar effect could result from hawking radiation theorized to be emitted from micro-black-holes. An unlikely scenario due to the very different nature supposed on hawking radiation and black-body radiation, but a curious thought none-the-less. If a light component of hawking radiation could replicate this net attractive force, accepted accretion and radiation rates could be revised to consider such new additional forces hypothesized.

Not so fast — Even if such a new force did take effect in these scenarios, one would expect such to have negligible impact on safety assurances. Official estimated accretion rates are many many orders of magnitude lower than estimated radiation rates — and are estimates which concur with observational evidence in the longevity of white-dwarf stars.

That is not to conclude such new forces are necessary to continue debate. Certain old disputed parameter ranges suggest different accretion rates relative to radiative rates which could bridge that vast breadth between such estimates, theorizing catastrophic outcomes [3] are not necessarily refuted by safety assurances — least on white-dwarf longevity.

Indeed a more pertinent point, that if equilibrium could manifest between radiation and accretion rates, micro-black-holes trapped in Earth’s gravitation could become persistent heat engines with considerable flux [2] to cause environmental concern in planetary heating.

Meanwhile, that stalwart safety assurance on micro-black-hole accretion risks, the longevity of white dwarf stars, finds new argument where the law of angular momentum conservation is considered as a significant factor in negating the G&M [4] calculated stopping distances of naturally occurring micro-black-holes on white dwarf stars due to it enforcing an immediate disengagement on striking quarks at such near-luminal speeds — this unlike LHC produced micro-black-holes, it is argued, which enjoy a 30,000 times longer interaction time [5].

One does not feel motivated to run for ‘end is nigh’ placards in such fringe discussions, but one can surmise that discussion on such topics of LHC safety assurance are far from the end of their rope in certain circles. Thank you to those involved for their continued discussions.


[1] Attractive Optical Forces from Blackbody Radiation — Sonnleitner, Ritsche-Marte, Ritsch, 2013. ( )
[2] Terrestrial Flux of Hypothetical Stable MBH Produced in Colliders relative to Natural CR Exposure — 2012. ( )
[3] Potential catastrophic risk from metastable quantum-black holes produced at particle colliders — R. Plaga, 2008/2009. ( )
[4] Astrophysical implications of hypothetical stable TeV-scale black holes — Giddings, Mangano — 2008 ( )
[5] Eintein’s Equivalence Principle, C-Global, and the Widely Ignored Factor 30,000 — O.E Rossler, 2013. ( )

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