Planck's constant, h. The limit goes to zero?

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SUMMARY

The discussion centers on the classical limit of Planck's constant (h) approaching zero and its implications in quantum mechanics (QM). Participants reference the fine structure constant and its relationship with h-bar, questioning the reasoning behind the classical interpretation. The conversation highlights the contrast between classical physics and quantum mechanics, particularly in the context of Bohr's theories. The need for clarity on why h-bar must approach zero in classical scenarios is emphasized.

PREREQUISITES
  • Understanding of Planck's constant (h) and reduced Planck's constant (h-bar)
  • Familiarity with quantum mechanics principles
  • Knowledge of classical physics concepts
  • Basic comprehension of the fine structure constant
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  • Research the implications of Planck's constant in quantum mechanics
  • Study the relationship between the fine structure constant and fundamental constants
  • Explore Bohr's model of the atom and its classical interpretations
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Physicists, students of quantum mechanics, and anyone interested in the foundational concepts of classical and quantum physics.

Katiethedil
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Why does it work out classically that the limit of h goes to zero? I'm reading a paper that says in QM, this is different. It's also talking about Bohr. Any ideas?
 
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Thanks Bob. I'm not sure why this paper says that.
 

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