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216 - Raphael Bousso: The Black Hole Paradox, Quantum Gravity, and the Holographic Principle

216 - Raphael Bousso: The Black Hole Paradox, Quantum Gravity, and the Holographic Principle

Robinson's Podcast vor 2 Jahren

0:00

1:45:30

Patreon: https://bit.ly/3v8OhY7

Raphael Bousso is the Chancellor’s Chair in Physics at the
Berkeley Center for Theoretical Physics, where he leads the
Bousso Group in research on quantum gravity and quantum
information. He is a renowned string theorist famous also for his
development of the string theoretic landscape and the Bousso
bound in holography. In this episode, Robinson and Raphael
discuss the groundbreaking work of Jacob Bekenstein, Stephen
Hawking, Leonard Susskind, Gerard ’t Hooft, and others on the
black hole information paradox. They then turn to how this led to
the formulation of the holographic principle, which has had
profound implications for research on quantum gravity, especially
for Raphael himself, who has recently been working on quantum
information theory, quantum communication, and other ways in
which classical gravity “knows about” and encodes its own quantum
states.

The Bousso Group: https://lightsheet.berkeley.edu

OUTLINE

00:00 Introduction

04:14 Working with Leonard Susskind and Stephen Hawking

6:29 Why Do Physicists Care About Black Holes?

19:11 Do Black Holes have a Temperature?

23:51 How Cold is a Black Hole?

27:32 The Black Hole Information Paradox

41:31 Do Black Holes Mean Quantum Mechanics Must be Thrown Out?

47:09 Black Hole Complementarity and Holography

54:09 What Is Quantum Gravity?

01:01:15 Why is Quantum Gravity a Low Energy Problem?

01:06:54 The Bottom-Up Approach to Quantum Gravity

1:11:12 On String Theory and Holography

01:16:00 What Are Bousso Bounds?

01:22:58 Is Gravity a Quantum Error-Correcting Code?

01:32:09 Is Gravity a Fundamental Force?

01:37:25 On String Theory and the Multiverse

Robinson’s Website: http://robinsonerhardt.com

Robinson Erhardt researches symbolic logic and the foundations of
mathematics at Stanford University. Join him in conversations
with philosophers, scientists, and everyone in-between.