Black Hole Macro-Quantumness

Understand

It is a common wisdom that properties of macroscopic bodies are well described by (semi)classical physics.

• As we have suggested this wisdom is not applicable to black holes.
• Despite being macroscopic, black holes are quantum objects.
• They represent Bose-Einstein condensates of N-soft gravitons at the quantum critical point, where N Bogoliubov modes become gapless.