Does the Higgs mechanism explain the equivalence of gravitiational and

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Discussion Overview

The discussion revolves around the relationship between the Higgs mechanism and the equivalence of gravitational and inertial mass. Participants explore definitions of mass and the theoretical frameworks that address the equivalence principle, including its implications in general relativity.

Discussion Character

  • Conceptual clarification, Debate/contested, Technical explanation

Main Points Raised

  • One participant questions whether the Higgs mechanism explains the equivalence of gravitational and inertial mass, indicating a lack of familiarity with the concept.
  • Another participant asserts that the Higgs mechanism is unrelated to the equivalence of mass, explaining its role in spontaneous symmetry breaking and mass generation through interactions with fermions.
  • A participant seeks clarification on the current theoretical understanding of the equivalence of gravitational and inertial mass, suggesting a distinction between mathematical and physical explanations.
  • There is a discussion about the lack of a formal theorem regarding the equivalence of gravitational and inertial mass, noting that they are defined differently but are experimentally observed to be very close.
  • One participant recommends reading about the equivalence principle on Wikipedia, emphasizing the geodesic motion of objects in spacetime and the interpretation of gravity in general relativity.
  • Another participant highlights that the equivalence of inertial and gravitational mass is considered a principle rather than a proven theorem, supported by strong experimental evidence and regarded as a postulate in general relativity.

Areas of Agreement / Disagreement

Participants express differing views on the relevance of the Higgs mechanism to the equivalence of mass. There is no consensus on a definitive explanation for the equivalence principle, and the discussion remains unresolved regarding the theoretical framework that best addresses the problem.

Contextual Notes

Participants note that definitions of mass can vary depending on the context, and there are unresolved aspects regarding the mathematical formulation of the equivalence principle.

agnishom
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I am not well versed in the idea of Higgs mechanism. However, I was wondering if it does explain the problem of equivalence of gravitational and inertial mass.

Also, what is the modern accepted definition of mass?
 
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No it doesn't. It has nothing to do with this kind of question. The Higgs Mechanism is an idea basically used to cause Spontaneous Symmetry Breaking, by letting the Higgs field to acquire a vacuum expectation value (so it's a spin-0 /scalar field). Then the allowed interactions of the higgs field to the fermions, can lead to mass terms. These masses are the rest masses.
There is not only one definition... it depends on what type of mass you are talkin about.
 
So, what is the state of the art theory that explains that problem?A mathematician knows how to do it, but he cannot
 
What do you mean by art theory?
The problem of what? the equivalence of gravitational and inertial mass? I don't know if there's a theorem, since they are defined in a different way. They just happen to be (by experiment) extremely close to each other (if not equal).
 
I suggest reading about the equivalence principle on Wikipedia.

http://en.wikipedia.org/w/index.php?title=Equivalence_principle

(Small) objects in space time follow the same geodesic lines as long as no external force acts upon them (given the same initial position and velocity). Note that gravity is not a force in GR, but the cause of the space-time geometry giving rise to the form of the geodesics.
 
The principle of equivalence between inertial and gravitation mass is, as the name says, a "principle". It doesn't have a proof but it has very strong experimental evidences. Einstein considered it as a postulate of his theory of General Relativity.
 

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