Signaling, Quantum Mechanics, and Arrival Times in Pilot Wave Theory

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Signaling, measurement, and observation should not be the foundational concepts in any theory.
The possibility of using a real physical non-local connection to signal faster than light raises questions.
The use of spin in pilot wave theory reveals a specific aspect that standard quantum mechanics cannot easily handle.
The issue of arrival times in quantum mechanics is often overlooked.
Quantum mechanics involves conducting experiments multiple times to obtain statistical results.

Last year's Nobel Prize for experimental tests of Bell's Theorem was the first Nobel in the foundations of quantum mechanics since Max Born in 1954. Quantum foundations is enjoying a bit of a resurgence, inspired in part by improving quantum technology but also by a realization that understanding quantum mechanics might help with other problems in physics (and be important in its own right). Tim Maudlin is a leading philosopher of physics and also a skeptic of the Everett interpretation. We discuss the logic behind hidden-variable approaches such as Bohmian mechanics, and also the broader question of the importance of the foundations of physics.

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Blog post with transcript: https://www.preposterousuniverse.com/podcast/2023/06/26/241-tim-maudlin-on-locality-hidden-variables-and-quantum-foundations/

Tim Maudlin received his Ph.D. in philosophy from the University of Pittsburgh. He is currently a professor of philosophy at New York University. He is a member of the Academie Internationale de Philosophie des Sciences and the Foundational Questions Institute (FQXi). He has been a Guggenheim Fellow. He is the founder and director of the John Bell Institute for the Foundations of Physics in Croatia.

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