Why is Symmetry Postulated in Quantum Field Theory and Particle Physics?

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Homework Help Overview

The discussion revolves around the concept of symmetry in Quantum Field Theory and particle physics, specifically questioning the rationale behind its postulation and its implications in the field.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are exploring the nature of symmetry, questioning whether it is a postulate or an observation, and discussing its relationship with conservation laws as suggested by Noether's theorem.

Discussion Status

The conversation is ongoing, with some participants seeking clarification on the original question while others are providing insights into the significance of symmetry in physical laws. There appears to be a divergence in understanding the foundational role of symmetry.

Contextual Notes

Some posts indicate a need for more specificity in the original question, suggesting that the discussion may be hampered by vague terminology or assumptions about the nature of symmetry.

Raparicio
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In Quantum Field Theory and in particles physics, there's a postulate that is SIMMETRY. Why exists this postulate?

Best reggards.
 
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That's rather vague. You have to b more specific, in order to get a decent response.

Daniel.
 
Symmetry is not postulated; it is rather an observation of the world's workings. It's importance lies in the fact that whenever a symmetry is found, an associated conservation law can be found as well (see Noether's theorem http://en.wikipedia.org/wiki/Noether's_theorem)
 
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Raparicio said:
In Quantum Field Theory and in particles physics, there's a postulate that is SIMMETRY. Why exists this postulate?

Best reggards.
Symmetry is inherent to physical phenomena and nature in general.

marlon
 

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