Double slit experiment in a Bubble Chamber

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SUMMARY

The discussion centers on the double slit experiment conducted in a bubble chamber and the implications of measuring which-path information on interference patterns. It is established that firing electrons one at a time allows for the observation of interference patterns, but measuring which-path information destroys this effect. Additionally, the idea of using a laser in a smoked environment to visualize photon tracks is explored, concluding that photons reaching the wall after the slits do not interact with smoke, thus preserving the interference pattern. However, any measurement of the particles compromises their entanglement information, negating the interference pattern.

PREREQUISITES
  • Understanding of quantum mechanics principles, specifically wave-particle duality.
  • Familiarity with the double slit experiment and its implications on quantum behavior.
  • Knowledge of bubble chamber functionality and its role in particle physics.
  • Basic concepts of entanglement and measurement in quantum systems.
NEXT STEPS
  • Research the implications of measurement on quantum entanglement in experiments.
  • Explore the variations of the double slit experiment using different particles, such as photons and electrons.
  • Investigate the use of bubble chambers in modern particle physics experiments.
  • Learn about the effects of environmental factors, such as smoke, on quantum experiments.
USEFUL FOR

Physicists, quantum mechanics students, and researchers interested in the principles of wave-particle duality and the effects of measurement on quantum systems.

JK423
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Has this type of experiment ever been performed?
Firing electrons one at a time we can easily get the which-path information and see if interference dissapears or not. What actually happens?

Also, if we do the double slit experiment with a usual laser but in a smoked environment (in order to see the tracks before and after the slits) what would then happen?
But for this i actually got an idea. The tracks of the photons in the smoke are not equivalent to the tracks of the electrons in a bubble chamber because in the first case the photons are either absorbed or scattered by the atoms. So the photons that actually reach the wall after the slits haven't interacted with the smoke ==> we will observe the interference pattern. Is the idea correct?
 
Last edited:
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JK423 said:
Has this type of experiment ever been performed?
Firing electrons one at a time we can easily get the which-path information and see if interference dissapears or not. What actually happens?

Also, if we do the double slit experiment with a usual laser but in a smoked environment (in order to see the tracks before and after the slits) what would then happen?
But for this i actually got an idea. The tracks of the photons in the smoke are not equivalent to the tracks of the electrons in a bubble chamber because in the first case the photons are either absorbed or scattered by the atoms. So the photons that actually reach the wall after the slits haven't interacted with the smoke ==> we will observe the interference pattern. Is the idea correct?

The pattern would not be there in either case, if you measure which way the particle is going at all it destroys entanglement information. Also, the particles that made it through the smoke undisturbed would in itself have been measured to NOT be in the areas of the smoke particles, which is measurement enough so they to would lose their entanglement information.
 
Last edited:

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