Questions Concerning Static and Dynamic Properties

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Discussion Overview

The discussion revolves around the distinction between static and dynamic properties of subatomic particles, specifically questioning whether there exist particles that possess only dynamic properties. The conversation touches on concepts related to quantum mechanics and particle behavior.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant, Tryon11, proposes a question regarding the existence of particles that have only dynamic properties, contrasting them with static properties that retain definite values between measurements.
  • Another participant, Zz, challenges the initial premise by clarifying that the spin quantum number of an electron remains constant, suggesting a potential misunderstanding regarding the distinction between the spin quantum number and its projection upon measurement.
  • A later post asks for opinions on the implications of an electron in the ground state of a hydrogen atom absorbing a photon and whether it would possess orbital angular momentum afterward.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus, as there are differing interpretations of the properties of particles and the implications of measurements in quantum mechanics.

Contextual Notes

The discussion includes assumptions about the definitions of static and dynamic properties, and the implications of quantum measurements, which remain unresolved.

Tryon11
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I understand that physicists distinguish between the static and the dynamic properties of a subatomic particle; where static properties are those that retain definite values in between measurements (eg the electric charge on an electron) and dynamic properties are those that do not retain definite values in between measurements (eg spin).

My question is this: Are there any particles that have only dynamic properties? https://www.physicsforums.com/images/smilies/confused.gif

Thanks,

Tryon11
 
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This is a bit confusing. Note the the spin quantum number "s" doesn't change! An electron will have a spin of s = 1/2 no matter what.

Are you confusing the projection of the spin quantum number "m_s" upon a measurement with the actual spin quantum number? If you are, then you may want to reexamine the original premise of your question because it is no longer as profound as you thought.

Zz.
 
If an electron in the ground state of a h-atom (l=0) absorbs a photon of sufficient energy to cause ionization and the photon carries angular momentum, does the unbound electron have orbital angular momentum?
 

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