PBS Space Time PBS Space Time

Why Did Quantum Entanglement Secure the Nobel Prize in Physics?

Sep 16, 2026 · 26m

Summary

This PBS Space Time episode explores the 2022 Nobel Prize in Physics, detailing how John Clauser, Alain Aspect, and Anton Zeilinger proved Einstein wrong regarding quantum entanglement. The host explains Bell’s theorem and the experiments that confirmed "spooky action at a distance," highlighting Aspect’s innovation in closing the locality loophole. Zeilinger’s work on practical applications, including quantum teleportation and cryptography, is also discussed. The episode concludes with a tribute to a late fan and answers viewer questions about solar gravitational lensing and the Standard M…

Topics discussed

Sponsor reads and introduction 2022 Nobel Prize in Physics announcement Quantum entanglement and Einstein's objections The quantum balls thought experiment Wavefunctions and hidden variable theories Sponsor reads and the Copenhagen interpretation Niels Bohr, David Bohm, and John Bell Bell's Theorem and the Bell Inequality John Clauser's first Bell test experiment Calcium atoms and photon polarization Results and the measurement loophole Sponsor reads Closing the locality loophole Alain Aspect's randomized measurement setup Superdeterminism and remaining loopholes Local vs. non-local hidden variables Anton Zeilinger and quantum applications Conclusion: Einstein and Feynman were wrong PBS survey and tribute to Alexander Henry Sayesky Sponsor reads and comment section intro Sponsor reads and solar lens communication Solar gravitational lens range and targets Standard Model Lagrangian feedback Ghosts in the Standard Model and renormalization Humorous anecdote about reciting the Lagrangian Sponsor reads: Verizon, Uber Eats, and SVB
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