156 - Fay Dowker: Wormholes, Quantum Gravity, and Causal Set Theory
Robinson's Podcast20 Loka 2023

156 - Fay Dowker: Wormholes, Quantum Gravity, and Causal Set Theory

Fay Dowker is Professor of Theoretical Physics at Imperial College London, where she works broadly on quantum gravity, and more particularly on an approach called causal set theory that takes the most basic pieces of the universe to be atoms of spacetime. In this episode, Robinson and Fay begin by discussing her studies with Stephen Hawking and their work on wormholes before turning to quantum gravity and causal set theory. Fay is also a faculty member at the John Bell Institute for the Foundations of Physics. If you’re interested in the foundations of physics—which you absolutely should be—then please check out the JBI, which is devoted to providing a home for research and education in this important area. Any donations are immensely helpful at this early stage in the institute’s life.


The John Bell Institute: https://www.johnbellinstitute.org


OUTLINE

00:00 In This Episode…

00:50 Introduction

04:49 How Do Physicists Think of Wormholes?

15:56 Stephen Hawking, Philosophy, and Quantum Gravity

26:00 Causal Set Theory and The Problem of Quantum Gravity

43:45 What is the Path Integral?

54:43 Is Spacetime Discrete?

57:40 Causal Set Theory and Black Holes

01:14:27 Lorentz Symmetry, Non-Locality, and Phenomenology in Causal Set Theory


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, weightlifters, artists, and everyone in-between.

Jaksot(276)

250 - Norman Finkelstein: Trump, Israel, Gaza, and the Criminalization of Dissent

250 - Norman Finkelstein: Trump, Israel, Gaza, and the Criminalization of Dissent

Norman Finkelstein received his PhD from the Princeton University Politics Department, and is best known for his research on Israel and Palestine.  Norman also appeared on episodes 192, 218, 228, and ...

11 Touko 20253h

249 - Chris Hedges: Donald Trump, Elon Musk, and the Rise of American Fascism

249 - Chris Hedges: Donald Trump, Elon Musk, and the Rise of American Fascism

Chris Hedges is a Pulitzer Prize–winning author and journalist who was a foreign correspondent for fifteen years for The New York Times. He has covered numerous wars across the decades, written many b...

27 Huhti 20253h

248 - Richard Wolff: Trump, Hitler, and the End of the American Empire

248 - Richard Wolff: Trump, Hitler, and the End of the American Empire

Richard Wolff is Professor Emeritus of Economics at the University of Massachusetts Amherst and a visiting professor at The New School, where he works on economics in the Marxist tradition. This is Ri...

13 Huhti 20253h 11min

247 - Garry Nolan: Aliens | The Case They’re Already Here

247 - Garry Nolan: Aliens | The Case They’re Already Here

Dr. Nolan is the Rachford and Carlota A. Harris Professor in the Department of Pathology at Stanford University School of Medicine. He has published over 350 research articles and is the holder of 50 ...

30 Maalis 20253h 22min

246 - Tim Maudlin: A Masterclass on General Relativity

246 - Tim Maudlin: A Masterclass on General Relativity

Tim Maudlin is Professor of Philosophy at NYU and Founder and Director of the John Bell Institute for the Foundations of Physics. This is Tim’s seventh appearance on the show. He last appeared on epis...

16 Maalis 20254h 22min

245 - Leonard Susskind: String Theory and the Black Hole War

245 - Leonard Susskind: String Theory and the Black Hole War

Leonard Susskind is Felix Block Professor of Physics at Stanford University. Along with other accomplishments, he is among the fathers of such revolutionary concepts in physics as string theory, black...

9 Maalis 20252h

244 - Norman Finkelstein: Donald J. Trump, Mossad Conspiracies in Israel, and the Dying Left

244 - Norman Finkelstein: Donald J. Trump, Mossad Conspiracies in Israel, and the Dying Left

Norman Finkelstein received his PhD from the Princeton University Politics Department, and is best known for his research on Israel and Palestine. In this episode, Norman and Robinson sit down for a d...

23 Helmi 20253h 42min

243 - Richard Wolff: Donald J. Trump and the Decline of the United States

243 - Richard Wolff: Donald J. Trump and the Decline of the United States

Richard Wolff is Professor Emeritus of Economics at the University of Massachusetts Amherst and a visiting professor at The New School, where he works on economics in the Marxist tradition. This is Ri...

9 Helmi 20253h 40min

Suosittua kategoriassa Tiede

rss-mita-tulisi-tietaa
tiedekulma-podcast
docemilia
rss-duodecim-lehti
rss-tiedetta-vai-tarinaa
mielipaivakirja
utelias-mieli
filocast-filosofian-perusteet
rss-ranskaa-raakana
rss-duokkari-ekstra
rss-astetta-parempi-elama-podcast
rss-ilmasto-kriisissa
rss-tervetta-skeptisyytta
rss-lihavuudesta-podcast
rss-sosiopodi