Basic Forces of Nature: Unifying Electromagnetic & Weak Nuclear

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Discussion Overview

The discussion centers on the unification of the electromagnetic force and the weak nuclear force, exploring the theoretical frameworks that allow for their combination. Participants express confusion and seek clarification on how these forces can be understood together, referencing historical developments in physics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant expresses confusion about the concept of unification of forces, specifically regarding the electromagnetic and weak nuclear forces.
  • Another participant clarifies that unification means both forces can be understood under the same theoretical framework, implying a shared set of rules.
  • A participant references the historical context of how electricity and magnetism were unified, suggesting a parallel to the unification of the weak nuclear and electromagnetic forces.
  • There is a question about the specific method of combining the weak nuclear force and electromagnetic force, with a suggestion that it involves a different type of rotation compared to the unification of electricity and magnetism.
  • A later reply introduces the idea of converting measurements of weak and electromagnetic fields through a rotation in "SU(2)xU(1)", although no external resources are provided to elaborate on this concept.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and curiosity about the unification of forces, with no consensus reached on the specifics of how the weak nuclear force and electromagnetic force are combined.

Contextual Notes

Participants reference historical developments and theoretical frameworks but do not provide detailed mathematical explanations or definitions, leaving some assumptions and steps unresolved.

FizixFreak
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hi i am little confused about UNIFICATION OF FORCES what does one mean when he talks about the unification of electromegnatic and weak nuclear force (which was achieved by dr.abdus salam) how can forces be combined ?
 
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Not quite. Unification means both forces can be understood under the same theoretical framework. Ie the same general set of rules apply to both.
 
FizixFreak said:
how can forces be combined ?

Hi FizixFreak! :smile:

To see how electricity and magnetism were combined, see http://en.wikipedia.org/wiki/Electromagnetism#History"
Originally, electricity and magnetism were thought of as two separate forces. This view changed, however, with the publication of James Clerk Maxwell's 1873 Treatise on Electricity and Magnetism in which the interactions of positive and negative charges were shown to be regulated by one force. …

etc :wink:
 
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mmmmmmmmmmm i will check it out thanks man
 
but there is still one question how were weak nuclear force and electromegnatic force combined?
 
FizixFreak said:
but there is still one question how were weak nuclear force and electromegnatic force combined?

Same way as electricity and magnetism are combined, but with a different rotation.

As you now know, an observer's measurements of electric and magnetic fields can be converted (partly) into each other by changing the velocity of the observer.

In other words, by a (Lorentz) rotation in space-time.

Similarly, an observer's measurements of weak and electromagnetic fields can be converted (partly) into each other by a rotation in "SU(2)xU(1)". :smile:

(and sorry, i don't know a good link for this … the wikipedia article on the http://en.wikipedia.org/wiki/Electroweak_interaction" isn't really helpful :redface:)
 
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