New Results in Quantum Tunneling vs. The Speed of Light
Oct 30, 2026 · 22m
Summary
This episode explores the theoretical and experimental aspects of quantum tunneling, specifically investigating whether particles can traverse barriers faster than light. The hosts discuss a new study using the Dirac equation that suggests tunneling can accelerate signal arrival, while a 2020 experiment utilized atomic spin as an internal clock to measure tunneling time.
Topics discussed
Sponsors: Subaru, SAP Concur, and Brilliant
Introduction: Quantum tunneling and superluminal motion
Recap: The mechanics of quantum tunneling
The mystery of tunneling time and the Hartman effect
Sponsors: SAP Concur, Subaru, and Sephora
Why tunneling time definitions are ambiguous
New theory: Dirac equation and FTL signaling limits
Sponsors: SAP Concur, Subaru, and Sephora
Experimental verification using spin-based clocks
Conclusion: Causality and the speed of light limit
Patreon shout-out: The Henry Van Styn Quantum Tunnel
Q&A: Magnetic monopoles and Higgs field configurations
Sponsors: SAP Concur, Subaru, and Sephora
Q&A: Monopoles in black holes and Harry Potter tunneling
Sponsors: LinkedIn, McDonald's, and Kuvasier
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