Quantum Eraser and Delayed Choice Quantum Eraser

thenewmans
Messages
168
Reaction score
1
I have read that these experiments have been successful and do not cause a disagreement with QM. But I can’t quite determine what was learned. So what did they prove or disprove? Is there a simple explanation? I thought they were designed to determine if wave collapse breaks either locality or causality? (Non-Locality – instant action at a distance. Non-Causality – action goes back in time. I think I have that part right.) It should be one or the other, right?
 
Physics news on Phys.org
(Oops, I hope I didn’t ask a question that was answered in that other Quantum Eraser thread. Sorry if I committed a PF faux pas.)
 

Thread 'Schrödinger equation and classical wave equation'

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...
View full post »

Thread 'Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect'

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
View full post »

Thread 'Is Maxwell's electromagnetism an effective (field) theory?'

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...
View full post »

Similar threads

I Delayed Choice Quantum Eraser with altered beam splitter
Replies
8
Views
2K
I Query on use of prism in delayed choice quantum eraser experiment
Replies
4
Views
1K
I Bell tests: Changing detector settings "just before photon arrives"
Replies
4
Views
1K
B Could we “cheat” and send a message back in time with a measurement?
Replies
7
Views
1K
A Call for experiment : Delayed Choice and Quantum Zeno Effect
Replies
18
Views
2K
I Kim's 1999 delayed-choice quantum eraser experiment
Replies
23
Views
4K
I Delayed quantum eraser: turning off sensor to bring back interference
Replies
24
Views
4K
I Wave function of particle / quantum field in space, also in time?
Replies
1
Views
1K
B We can't unite QM with GR because of what the Qfield is capable of
Replies
3
Views
1K
I Data from a delayed choice quantum eraser experiment
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top