Horava Lifschitz theory and Lorentz Invariance

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Discussion Overview

The discussion revolves around the Horava Lifschitz theory and its implications for Lorentz invariance, particularly in the context of high-energy physics and the behavior of photons from gamma ray bursts. Participants explore the theoretical underpinnings and potential observable consequences of this theory.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants propose that Horava Lifschitz theory breaks Lorentz invariance at high energies, suggesting that this could lead to varying speeds of light for different frequencies of photons from gamma ray bursts.
  • Others argue that this is not necessarily the case, indicating that the implications depend on specific conditions.
  • A later reply questions the reasoning behind the assertion that varying speeds would occur, asking for clarification on what factors influence this outcome.
  • One participant explains that Horava theory includes free parameters, and the phenomenological consequences may vary based on the values of these parameters.
  • Another participant suggests consulting Horava's original paper for a deeper understanding of the technical aspects related to the free parameters.

Areas of Agreement / Disagreement

Participants do not reach a consensus, as there are competing views regarding the implications of Horava Lifschitz theory on Lorentz invariance and the behavior of light in high-energy scenarios.

Contextual Notes

The discussion highlights the dependence of theoretical outcomes on specific parameter values within the Horava theory, which remains unresolved in terms of how these parameters affect observable phenomena.

windy miller
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As I understand it Horava Lifschitz theory breaks lorentz invariance at high energies.
Does this mean we should see photons from gamma ray bursts leave a signal of varying speeds of light for different frequencies?
 
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Demystifier said:
Not necessarily.
Cn you elaborate? Why not? What does it depend on?
 
Horava theory is a theory of gravity with some free parameters. The phenomenological consequences may depend on the exact values of those parameters.
 
Thanks for that , can you elaborate on the nature of these free parameters,?sorry to be a pain just trying to understand a bit better.
 
It's quite technical, so I would suggest to take a look at the Horava's paper.
 
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