Observer effect in the Dual Slit experiment

Click For Summary
SUMMARY

The discussion centers on the observer effect in the Double Slit experiment, specifically how detectors interact with photons and electrons. It is established that detectors become entangled with the particles, which alters the outcome on the screen, resulting in two distinct lines instead of an interference pattern. Observing light with the human eye does not yield the same results as using a detector, as the light must enter the eye to be detected, preventing it from reaching the screen. The conversation also references the no-communication theorem, emphasizing that information cannot travel faster than light.

PREREQUISITES
  • Quantum Mechanics fundamentals
  • Understanding of the Double Slit experiment
  • Knowledge of quantum entanglement
  • Familiarity with the no-communication theorem
NEXT STEPS
  • Research the implications of quantum entanglement on particle behavior
  • Study the principles of the Double Slit experiment in detail
  • Explore the no-communication theorem and its significance in quantum mechanics
  • Investigate the role of detectors in quantum experiments
USEFUL FOR

Students of physics, quantum mechanics enthusiasts, and researchers interested in the implications of observation on quantum systems.

John Mcrain
Messages
435
Reaction score
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?
 
Last edited:
Physics news on Phys.org
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.
 
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?
 
Does information travel at higher speed then light between two particles in EPR paradox?
Infinite speed?
 
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”.
 
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.
 
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.
 
  • Like
Likes   Reactions: SammyS, DrChinese and berkeman

Similar threads

Undergrad Is There A Study Showing The Observer Effect Ignoring Conscious Intent?
  • · Replies 3 ·
Replies
3
Views
4K
High School Yet another double slit thought experiment...
  • · Replies 20 ·
Replies
20
Views
2K
Undergrad Single vs. Double slit coherence clarification please
  • · Replies 10 ·
Replies
10
Views
1K
Undergrad Double slit experiment with observer
  • · Replies 14 ·
Replies
14
Views
4K
High School Q - Double slit experiment, delayed slit selection observation
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Which-Path from Global Momentum Measurement in Double Slit
  • · Replies 3 ·
Replies
3
Views
455
Undergrad The physical components in the electron double slit experiment
  • · Replies 7 ·
Replies
7
Views
1K
Undergrad 2-Slit: How do we know photon guns only produce single photons?
  • · Replies 33 ·
2
Replies
33
Views
2K
Undergrad Photon detector on a dual slit experiment
  • · Replies 3 ·
Replies
3
Views
1K
High School Dual slit with controlled electron trajectories
  • · Replies 26 ·
Replies
26
Views
2K