What can cutting a photon in half tell us about causality and local equivalence?

· Physicsworld · Sept. 24, 2026, 7:45 a.m.
Quantum optics Physics causality calculations photons
Summary
This blog post discusses the implications of removing a mirror in calculations related to photons and their interaction with causality and local equivalence, but it appears to be more aligned with physics than software development or coding.
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