I Classic 'Double-Slit' Experiment Using Time Instead of Space

sbrothy
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Physicists Recreate Classic 'Double-Slit' Experiment Using Time Instead of Space
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I think the go-fast optics in the actual paper is a lot of fun and the result is satisfying. I dont know whether this expands the state of the art for modulating light fastly (fastly being a Trumpism).
The rest of the hype is just silly IMHO.
 
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I suspected as much. Thank you.
 
sbrothy said:
is there actually anything new in it?
That's effectively what neutrino oscillation experiments have been doing for decades.
 
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Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...
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
Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...

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