
Why The Delayed Choice Quantum Eraser is NOT Retrocausal ft. @LookingGlassUniverse
Thank you to Cyber GhostVPN for Supporting PBS. Learn More About Cyber GhostVPN: https://cyberghostvpn.com/PBSSpaceTime
Does quantum mechanics allow the future to retroactively influence the past, as in the infamous delayed choice quantum eraser experiment? How about we get an actual quantum physicist--who many of you already know--to show us how to do this experiment at home, and hopefully set this matter to rest.
Check Out Looking Glass Universe:
https://www.youtube.com/@LookingGlassUniverse
And Check Out Matt’s Conversation with Mithuna
https://youtu.be/QPuVtvIOYcM?si=TQovlQ6kW_6PPxKy
Sign Up on Patreon to get access to the Space Time Discord!
https://www.patreon.com/pbsspacetime
Check out the Space Time Merch Store
https://www.pbsspacetime.com/shop
Sign up for the mailing list to get episode notifications and hear special announcements!
https://mailchi.mp/1a6eb8f2717d/spacetime
Search the Entire Space Time Library Here: https://search.pbsspacetime.com/
Hosted by Matt O'Dowd & Mithuna Yoganathan
Written by Mithuna Yoganathan & Matt O'Dowd
Post Production by Leonardo Scholzer
Directed by Andrew Kornhaber
Associate Producer: Bahar Gholipour
Executive Producer: Andrew Kornhaber
Executive in Charge for PBS: Maribel Lopez
Director of Programming for PBS: Gabrielle Ewing
Assistant Director of Programming for PBS: John Campbell
Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2025 PBS. All rights reserved.
End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka
Space Time Was Made Possible In Part By:
Big Bang
Alexander Tamas
David Paryente
Juan Benet
Mark Rosenthal
Morgan Hough
Peter Barrett
Santiago
Tj Steyn
Vinnie Falco
Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Mark Heising
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke
Hypernova
Alex Kern
Ben Delo
Cal Stephens
chuck zegar
David Giltinan
Dean Galvin
Donal Botkin
Gregory Forfa
Jesse Cid Dyer
John R. Slavik
Justin Lloyd
Kenneth See
Massimiliano Pala
Michael Tidwell
Mike Purvis
Paul Stehr-Green
Scott Gorlick
Scott Gray
Spencer Jones
Stephen Saslow
Thomas Mouton
Zachary Haberman
Антон Кочков
Daniel Muzquiz
Gamma Ray Burst
Aaron Pinto
Adrien Molyneux
Almog Cohen
Anthony Leon
Arko Provo Mukherjee
Ayden Miller
Ben McIntosh
Bradley Jenkins
Bradley Ulis
Brandon Lattin
Brian Cook
Bryan White
Chris Liao
Christopher Wade
Chuck Lukaszewski
Collin Dutrow
Craig Falls
Craig Stonaha
Dan Warren
Daniel Donahue
Daniel Jennings
Daron Woods
Darrell Stewart
David Johnston
Doyle Vann
Eric Kiebler
Eric Raschke
Eric Schrenker
Faraz Khan
Frederic Simon
Harsh Khandhadia
Ian Williams
Isaac Suttell
James Trimmier
Jeb Campbell
Jeremy Soller
Jerry Thomas
jim bartosh
John Anderson
John De Witt
John Funai
John H. Austin, Jr.
John591
Joseph Salomone
Junaid Ali
Kacper Cieśla
Kane Holbrook
Keith Pasko
Kent Durham
Koen Wilde
Kyle Atkinson
Marcelo Garcia
Marion Lang
Mark Daniel Cohen
Mark Delagasse
Matt Kaprocki
Matthew Johnson
Michael Barton
Michael Clark
Michael Lev
Michael Purcell
Nathaniel Bennett
Nick Hoffenstoffer III
Nicolas Katsantonis
Paul Wood
Rad Antonov
Reuben Brewer
Richard Steenbergen
Robert DeChellis
Ross Story
Russell Moore
SamSword
Sandhya Devi
Satwik Pani
Sean Owen
Shane Calimlim
SilentGnome
Sound Reason
Steffen Bendel
Steven Giallourakis
Terje Vold
Thomas Dougherty
Tomaz Lovsin
Tybie Fitzhugh
Vlad Shipulin
William Flinn
WILLIAM HAY III
Zac Sweers
Does quantum mechanics allow the future to retroactively influence the past, as in the infamous delayed choice quantum eraser experiment? How about we get an actual quantum physicist--who many of you already know--to show us how to do this experiment at home, and hopefully set this matter to rest.
Check Out Looking Glass Universe:
https://www.youtube.com/@LookingGlassUniverse
And Check Out Matt’s Conversation with Mithuna
https://youtu.be/QPuVtvIOYcM?si=TQovlQ6kW_6PPxKy
Sign Up on Patreon to get access to the Space Time Discord!
https://www.patreon.com/pbsspacetime
Check out the Space Time Merch Store
https://www.pbsspacetime.com/shop
Sign up for the mailing list to get episode notifications and hear special announcements!
https://mailchi.mp/1a6eb8f2717d/spacetime
Search the Entire Space Time Library Here: https://search.pbsspacetime.com/
Hosted by Matt O'Dowd & Mithuna Yoganathan
Written by Mithuna Yoganathan & Matt O'Dowd
Post Production by Leonardo Scholzer
Directed by Andrew Kornhaber
Associate Producer: Bahar Gholipour
Executive Producer: Andrew Kornhaber
Executive in Charge for PBS: Maribel Lopez
Director of Programming for PBS: Gabrielle Ewing
Assistant Director of Programming for PBS: John Campbell
Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2025 PBS. All rights reserved.
End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka
Space Time Was Made Possible In Part By:
Big Bang
Alexander Tamas
David Paryente
Juan Benet
Mark Rosenthal
Morgan Hough
Peter Barrett
Santiago
Tj Steyn
Vinnie Falco
Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Mark Heising
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke
Hypernova
Alex Kern
Ben Delo
Cal Stephens
chuck zegar
David Giltinan
Dean Galvin
Donal Botkin
Gregory Forfa
Jesse Cid Dyer
John R. Slavik
Justin Lloyd
Kenneth See
Massimiliano Pala
Michael Tidwell
Mike Purvis
Paul Stehr-Green
Scott Gorlick
Scott Gray
Spencer Jones
Stephen Saslow
Thomas Mouton
Zachary Haberman
Антон Кочков
Daniel Muzquiz
Gamma Ray Burst
Aaron Pinto
Adrien Molyneux
Almog Cohen
Anthony Leon
Arko Provo Mukherjee
Ayden Miller
Ben McIntosh
Bradley Jenkins
Bradley Ulis
Brandon Lattin
Brian Cook
Bryan White
Chris Liao
Christopher Wade
Chuck Lukaszewski
Collin Dutrow
Craig Falls
Craig Stonaha
Dan Warren
Daniel Donahue
Daniel Jennings
Daron Woods
Darrell Stewart
David Johnston
Doyle Vann
Eric Kiebler
Eric Raschke
Eric Schrenker
Faraz Khan
Frederic Simon
Harsh Khandhadia
Ian Williams
Isaac Suttell
James Trimmier
Jeb Campbell
Jeremy Soller
Jerry Thomas
jim bartosh
John Anderson
John De Witt
John Funai
John H. Austin, Jr.
John591
Joseph Salomone
Junaid Ali
Kacper Cieśla
Kane Holbrook
Keith Pasko
Kent Durham
Koen Wilde
Kyle Atkinson
Marcelo Garcia
Marion Lang
Mark Daniel Cohen
Mark Delagasse
Matt Kaprocki
Matthew Johnson
Michael Barton
Michael Clark
Michael Lev
Michael Purcell
Nathaniel Bennett
Nick Hoffenstoffer III
Nicolas Katsantonis
Paul Wood
Rad Antonov
Reuben Brewer
Richard Steenbergen
Robert DeChellis
Ross Story
Russell Moore
SamSword
Sandhya Devi
Satwik Pani
Sean Owen
Shane Calimlim
SilentGnome
Sound Reason
Steffen Bendel
Steven Giallourakis
Terje Vold
Thomas Dougherty
Tomaz Lovsin
Tybie Fitzhugh
Vlad Shipulin
William Flinn
WILLIAM HAY III
Zac Sweers
PBS Space Time
Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth with our astrophysicist host: Matthew O’Dowd.
Episodes released every Wednesday afternoon!
...