Do Black Holes Have to Remain Black?
Summary
This episode explores the theoretical possibility of "color-charged" black holes, which carry quantum chromodynamic charge rather than electric charge. Hosts discuss a new study suggesting that tiny primordial black holes formed during the early universe's quark-gluon plasma phase could have retained this charge. The discussion covers how these exotic objects might influence Big Bang nucleosynthesis or persist as Planck relics, potentially offering new avenues for detecting dark matter.
Topics discussed
Sponsors and introduction
Black hole basics and the no-hair theorem
Electric vs. color charge in black holes
Color confinement and the quark-gluon plasma
Sponsor segments
Primordial black holes in the early universe
Formation timing and dark matter mass constraints
Sponsor segments
Mass, size, and extremal color-charged black holes
Hawking radiation and charge retention
Observable effects and Planck relics
Sponsors and conclusion
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Closing sponsor ad
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