Dual slit experiment: closing/opening a slit after the particle passes it. .

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SUMMARY

The discussion centers on the dual-slit experiment and its extension involving the manipulation of a second slit after a particle has passed it. Participants clarify that if the slit is opened or closed after the particle's passage, the outcome remains unchanged, akin to not altering the slit at all. The mention of delayed choice experiments indicates a related but distinct concept in quantum mechanics. This highlights the fundamental principles of wave-particle duality and the implications of measurement in quantum physics.

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  • Understanding of quantum mechanics principles, specifically wave-particle duality.
  • Familiarity with the dual-slit experiment and its significance in physics.
  • Knowledge of delayed choice experiments and their implications in quantum theory.
  • Basic grasp of experimental design in physics research.
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  • Research the principles of wave-particle duality in quantum mechanics.
  • Study the original dual-slit experiment and its variations.
  • Explore delayed choice experiments and their impact on quantum theory.
  • Investigate the role of measurement in quantum mechanics and its philosophical implications.
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Students of physics, quantum mechanics enthusiasts, and researchers interested in the foundational experiments that shape our understanding of quantum behavior.

Valenciennes
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Hello everyone,

I recall reading some time ago about an extension to the dual-slit experiment, where researchers either closed or opened a 2nd slit after the particle passed the slit but before it hit the detector.

Does anyone know about this research, like the results, and who performed it?


Thanks!
 
Physics news on Phys.org
If you open/close the slit after the particle passes, everything will be the same as if you have not did it.

Perhaps you were actually reading about delayed choice experiments, but that's something different.
 

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