Observer effect in the Dual Slit experiment

In summary, the conversation discusses how detectors and observers in front of each slit work and whether or not they interfere with the motion of electrons or photons. It is mentioned that detectors can become entangled with the particles, and that observing light with the naked eye is physically impossible. The topic of information traveling at faster speeds than light is also briefly mentioned, and it is advised to avoid relying on unreliable sources for understanding quantum mechanics.
  • #1
John Mcrain
435
28
How detectors/observers in front of each slit works , does it somehow disturb with electron/photon?
Does photon/electron must pass through detector/observer, so maybe his internal parts change final result on screen into just two lines?
 
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  • #2
John Mcrain said:
How detectors/observers in front of each slit works , does it somehow interfer with electron/photon?
No, the detector gets entangled with the electron/photon.
 
  • #3
Demystifier said:
No, the detector gets entangled with the electron/photon.
Can you exlain how detectors work?
If I just observe light that pass throug two slits with my eyes, will electrons show two lines on back screen?
How can my thoughts change reality,results on back screen?
 
  • #4
Does information travel at higher speed then light between two particles in EPR paradox?
Infinite speed?
 
  • #5
John Mcrain said:
Does information travel at higher speed then light between two particles in EPR paradox?
Infinite speed?
No. Google for “no-communication theorem”.
 
  • #6
John Mcrain said:
If I just observe light that pass throug two slits with my eyes, will electrons show two lines on back screen?
That is physically impossible. You only see light if it enters your eyes to be detected by the photosensitive cells in the retina, and if it’s doing that it’s not reaching the screen.
 
  • #7
And since this video is garbage and not even close to an acceptable source under the forum rules this thread is closed.

You cannot understand QM by watching stuff like this, you can only accrete misinformation that you will eventually have to unlearn.
 
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Likes SammyS, DrChinese and berkeman

FAQ: Observer effect in the Dual Slit experiment

What is the observer effect in the context of the double-slit experiment?

The observer effect refers to the phenomenon where the act of measuring or observing a quantum system alters its state. In the double-slit experiment, when particles such as electrons or photons are not observed, they exhibit wave-like behavior and create an interference pattern. However, when an observation is made, the particles behave like classical particles, and the interference pattern disappears. This change is attributed to the measurement process itself affecting the system being measured.

How does the double-slit experiment demonstrate the observer effect?

The double-slit experiment demonstrates the observer effect by showing how the behavior of particles changes based on whether they are being observed. When both slits are open and no measurement is made, particles create an interference pattern, indicating wave-like behavior. However, if a measurement is made to determine which slit a particle passes through, the interference pattern collapses, and the particles behave like individual particles, illustrating that observation influences the outcome.

Does the observer need to be a conscious entity for the observer effect to occur?

No, the observer does not need to be a conscious entity for the observer effect to occur. The key factor is the interaction with a measuring device or any system that can extract information about the quantum state. This interaction causes a change in the system, regardless of whether a conscious observer is involved. The act of measurement itself is what leads to the change in behavior of the quantum particles.

What implications does the observer effect have for our understanding of reality?

The observer effect raises profound questions about the nature of reality and the role of observation in quantum mechanics. It suggests that the act of measurement plays a crucial role in determining the state of a quantum system, leading to interpretations that challenge classical notions of objective reality. This has led to various philosophical debates, including discussions about the nature of consciousness, the role of the observer, and the fundamental nature of existence in a quantum framework.

Can the observer effect be eliminated or minimized in experiments?

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