Ontology of an electron passing through a Stern-Gerlach magnet

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SUMMARY

The discussion centers on the ontology of quantum mechanics, particularly regarding the behavior of electrons passing through a Stern-Gerlach magnet. Participants assert that an electron does not possess a definite spin value until measured, raising questions about its existence and position prior to measurement. The conversation highlights the limitations of the scientific method in addressing unmeasured states and contrasts quantum mechanics with classical mechanics, emphasizing the role of interpretation in understanding quantum phenomena. Key interpretations, such as Bohmian mechanics, are mentioned, illustrating the ongoing debate about the nature of reality in quantum physics.

PREREQUISITES
  • Understanding of quantum mechanics principles, particularly spin and measurement.
  • Familiarity with the Stern-Gerlach experiment and its implications for particle behavior.
  • Knowledge of different interpretations of quantum mechanics, including Bohmian mechanics.
  • Basic grasp of classical mechanics and its ontological implications.
NEXT STEPS
  • Explore the implications of the Stern-Gerlach experiment on quantum measurement theory.
  • Research the Bohmian interpretation of quantum mechanics and its stance on particle existence.
  • Investigate the philosophical implications of ontology in quantum mechanics.
  • Examine the differences between classical mechanics and quantum mechanics regarding measurement and reality.
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Physicists, philosophers of science, and students of quantum mechanics seeking to deepen their understanding of the foundational questions surrounding measurement, existence, and the interpretation of quantum phenomena.

  • #31
I see this through the prism of a materialistic interpretation of action in a closed world.
 
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  • #32
martinbn said:
That the particles/fields exist, in this example the electron.
That's not an ontology. This situation you describe is exactly why to this day QT has no ontology. Shut up and calculate is not an ontology.
 
  • #33
EPR said:
That's not an ontology. This situation you describe is exactly why to this day QT has no ontology. Shut up and calculate is not an ontology.
What is onltology according to you?
 

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