

115 | Netta Engelhardt on Black Hole Information, Wormholes, and Quantum Gravity
Sep 21, 2020
Netta Engelhardt, a physics professor at MIT and a leading researcher in black hole information, dives into the mind-boggling puzzle of what happens to information swallowed by black holes. She discusses recent breakthroughs that suggest information might not be lost, exploring the implications of wormholes in this mystery. The conversation also covers the intricate relationship between black holes and entropy, the cosmic dance of entanglement, and how these phenomena challenge our understanding of quantum gravity and the very fabric of space-time.
AI Snips
Chapters
Transcript
Episode notes
Information Loss Paradox
- Information loss in black hole evaporation contradicts quantum mechanics' information conservation.
- This challenges physics' predictive power, as past states become unrecoverable.
Bekenstein's Black Hole Entropy
- John Wheeler challenged Jacob Bekenstein to explain how throwing tea into a black hole decreases universal entropy.
- Bekenstein proposed that black holes possess entropy, contradicting general relativity.
Entanglement's Limits
- Entanglement is a quantum correlation between objects, like linked coins, but doesn't transmit information alone.
- Information escape from black holes requires non-locality beyond entanglement, unlike standard quantum mechanics.