Can Particles Be Connected Across Vast Distances?

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Quantum entanglement occurs when two particles, such as electrons, are paired in a way that their properties become linked, regardless of the distance separating them. When entangled, measuring one particle's property instantly reveals information about the other, even if they are lightyears apart. The exact mechanism that connects these particles remains a topic of debate among physicists, with no definitive explanation currently available. Some resources, like videos and articles, attempt to clarify these concepts but may not fully address the underlying "why" of entanglement. Understanding quantum entanglement continues to be a complex challenge in the field of quantum physics.
Jarfi
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I know the properties of quantum entanglement and what it does but what i don't understand is why do particles become entangled and why are they entangled... what connects two electrons that are millions of lightyears apart from each other? Do physicians really know? Is there any explenation of quantum entanglement?
 
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if you take two electrons, put them together, their magnetic moments will point in opposite directions

you take them apart and measure the direction of one. once you have measured this you instantly know something about the other electron no matter how far away it is, even though there is a probability when measuring the direction of the first electron.

when you put the two electrons together so you don't know which way they are pointing, but you know the two are in opposite directions, you can say that they are entangled

hope this brief description helps :)
 
genericusrnme said:
if you take two electrons, put them together, their magnetic moments will point in opposite directions

you take them apart and measure the direction of one. once you have measured this you instantly know something about the other electron no matter how far away it is, even though there is a probability when measuring the direction of the first electron.

when you put the two electrons together so you don't know which way they are pointing, but you know the two are in opposite directions, you can say that they are entangled

hope this brief description helps :)

Yea i know but i was asking why that happens, what connects the electrons?
 
See here for a simple explanation:

http://soi.blogspot.com/2011/02/two-slit-experiment.html
 
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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