Wave-Particle Duality: Physics Implications

MiNiWolF
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I was just wondering about, after I had read about this topic. Which consequences did it have on physics that we can consider light as waves in some experiments and as particles (photons, quanta) in other experiments.

And maybe even if all matter can have the same properties as light?
 
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MiNiWolF said:
I was just wondering about, after I had read about this topic. Which consequences did it have on physics that we can consider light as waves in some experiments and as particles (photons, quanta) in other experiments.

And maybe even if all matter can have the same properties as light?

Matter does indeed have wave properties like light. De Broglie put this forth around 1924 and received a Nobel for it. So the consequences for physics was that basic Quantum Theory depends on this. I see the Heisenberg Uncertainty Principle as perhaps the most important expression of complementarity and wave/particle duality.
 
So matter actually have a wave length like De Broglie formulated it in his equation? So what does this change in physics? Did we have to rewrite any models, extent them? Or did we find new properties for particle that we can use to explain new physics?
 
I read Hanbury Brown and Twiss's experiment is using one beam but split into two to test their correlation. It said the traditional correlation test were using two beams........ This confused me, sorry. All the correlation tests I learnt such as Stern-Gerlash are using one beam? (Sorry if I am wrong) I was also told traditional interferometers are concerning about amplitude but Hanbury Brown and Twiss were concerning about intensity? Isn't the square of amplitude is the intensity? Please...
I am not sure if this belongs in the biology section, but it appears more of a quantum physics question. Mike Wiest, Associate Professor of Neuroscience at Wellesley College in the US. In 2024 he published the results of an experiment on anaesthesia which purported to point to a role of quantum processes in consciousness; here is a popular exposition: https://neurosciencenews.com/quantum-process-consciousness-27624/ As my expertise in neuroscience doesn't reach up to an ant's ear...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA

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