Mechanical system with simlar phyysics of neutrion flavor mixing.

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Discussion Overview

The discussion revolves around a mechanical system that participants suggest exhibits physics analogous to neutrino flavor mixing. The focus is on modeling this system using coupled harmonic oscillators and exploring the necessary conditions for its behavior to resemble that of neutrino oscillations.

Discussion Character

  • Exploratory
  • Technical explanation
  • Mathematical reasoning

Main Points Raised

  • One participant proposes a mechanical system where pulling one mass down while holding others could mimic neutrino flavor mixing.
  • Another participant suggests that the spring constants (k_12, k_23, k_31) could be equal to create a system more akin to flavor mixing physics.
  • A different participant introduces a Lagrangian for a system of three coupled harmonic oscillators, questioning the need to reduce the freedom of the model due to the number of parameters involved.
  • There is a goal stated to reproduce a specific graph related to neutrino oscillations, indicating a desire to connect the mechanical model to established physics.
  • One participant acknowledges a previous issue with sharing a drawing of their system, indicating it has been resolved.

Areas of Agreement / Disagreement

Participants are exploring various aspects of the mechanical system and its parameters, but there is no consensus on the specific configurations or adjustments needed to accurately reflect neutrino flavor mixing.

Contextual Notes

The discussion involves assumptions about the relationships between mass and spring constants, as well as the implications of the Lagrangian's degrees of freedom, which remain unresolved.

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Mechanical system with similar physics of neutrino flavor mixing. Pull one mass down while holding the others at their rest positions. Now let them all go.

See system here (don't know how to add images):

https://picasaweb.google.com/andyeverett57/August282011

Sorry for the spelling in the title, could not edit or cancel, the title should read:

Mechanical system with similar physics of neutrino flavor mixing.
 
Last edited by a moderator:
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I think k_12, k_23, and k_31 can be the same and we have physics more similar to flavor mixing physics?

Thanks for any help!

I think the system in my drawing need to be tweaked? Maybe the masses are the same but the springs k need to change?
 
Last edited:
So let's make the system of three coupled harmonic oscillators as general as possible, its Lagrangian should be:

L = {[m_i*v_i^2/2 - k_i*x_i^2/2]i=1,2,3} -{[k_ij*(x_i-x_j)^2/2]i,j=12,23,31}

the kinetic energy of the masses minus the energy in the springs.

This Lagrangian has too much freedom, the masses and 6 spring constants can be different. We need to reduce this freedom?

Any thoughts?
 
Last edited:
Looks like the drawing of my system was set not to be viewed by others, think that is fixed now, sorry.
 

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