29/07/2025
Title: Famous double‑slit experiment holds up when stripped to its quantum essentials
See: https://news.mit.edu/2025/famous-double-slit-experiment-holds-when-stripped-to-quantum-essentials-0728
MIT researchers performed a minimal, atom‑based version of the double‑slit experiment. By controlling how much “which‑path” information each atom revealed, they confirmed that interference vanishes exactly as path knowledge increases—just as quantum theory predicts and contrary to Einstein’s proposed loophole.
Key Points
• Used single atoms as slits and ultra‑weak photon beams.
• Showed perfect trade‑off between path info and interference.
• Refutes Einstein’s “rustle without collapse” idea.
• Confirms entanglement, not mechanics, governs the effect.
Quantum reality stays coy—reveal its path, and the wave vanishes. Schrödinger’s cat approves of the mystery.
H/T: Bill Davidson
MIT physicists performed an idealized version of the double-slit experiment, stripping it to its quantum essentials. They confirmed that light exists as both a wave and a particle but cannot be observed in both forms at the same time.
