7 events found.
Week of Events
Sunday, December 7, 2025
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Monday, December 8, 2025
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Tuesday, December 9, 2025
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Wednesday, December 10, 2025
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Thursday, December 11, 2025
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Friday, December 12, 2025
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December 12, 2025 -CGCA Seminar – Samuel E. Gralla
CGCA Seminar – Samuel E. Gralla
Can black holes evaporate past extremality?
Professor Samuel E. Gralla
University of Arizona
Black holes with sufficiently large initial charge and mass will Hawking-evaporate towards the extremal limit. The emission slows as the temperature approaches zero, but still reaches the point where a single Hawking quantum would make the object superextremal, removing the horizon. We take this semiclassical prediction at face value and ask: When the emission occurs, what is revealed?
Saturday, December 13, 2025
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