Gravitons moving out of our dimension

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SUMMARY

The discussion centers on the nature of gravitons and their interaction with dimensions, asserting that gravity is a weak force because gravitons escape into higher dimensions. Participants debate whether gravitons can re-enter our dimension, potentially counteracting their escape. The conversation emphasizes that gravity's perceived weakness arises from its need to traverse multiple dimensions, unlike electromagnetic and nuclear forces, which operate solely within our three spatial dimensions. Clarifications regarding the behavior of gravitons in relation to branes and higher-dimensional theories are also explored.

PREREQUISITES
  • Understanding of string theory concepts, particularly branes and dimensions.
  • Familiarity with the properties and theories surrounding virtual particles, specifically gravitons.
  • Knowledge of gravitational force and its comparison to other fundamental forces.
  • Basic grasp of higher-dimensional physics and how it relates to our observable universe.
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  • Research "string theory and branes" to understand the implications of higher dimensions on fundamental forces.
  • Study "gravitons and virtual particles" to gain insights into their properties and behaviors.
  • Explore "theories of gravity in higher dimensions" to comprehend how gravity operates differently than other forces.
  • Investigate "the relationship between electromagnetism and gravity" to analyze their comparative strengths and behaviors.
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Physicists, students of theoretical physics, and anyone interested in the complexities of gravitational theory and higher-dimensional physics.

mim
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Is my understanding correct. Gravity is a week force because gravitons escape out of our dimension into other dimensions. If so would gravitons not also be able to re-enter our dimesion. Therefore cancelling out this theory
 
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Smart.If gravitons are virtual photons, you can think of switching on a bulb.If light traveled in only one selective dimension after re-entering from everywhere else, then we wouldn't need to create lasers
 
mim said:
Is my understanding correct. Gravity is a week force because gravitons escape out of our dimension into other dimensions. If so would gravitons not also be able to re-enter our dimesion. Therefore cancelling out this theory
No, it's just that gravity has more ground to cover. If you imagine that all the forces should be of roughly equal strength, but that electromagnetism and the nuclear forces only operate in our 3 spatial dimensions while gravity must contend with 9 dimensions, you can easily see how it gets "spread out" and diluted.
 
bapowell said:
No, it's just that gravity has more ground to cover. If you imagine that all the forces should be of roughly equal strength, but that electromagnetism and the nuclear forces only operate in our 3 spatial dimensions while gravity must contend with 9 dimensions, you can easily see how it gets "spread out" and diluted.
Many thanks bapowell I get it.
 
vin300 said:
Smart.If gravitons are virtual photons, you can think of switching on a bulb.If light traveled in only one selective dimension after re-entering from everywhere else, then we wouldn't need to create lasers
I don't understand your answer vin300. I thought a graviton was a closed string that was shaped or vibrated in a particular way that made it unique ie a graviton also my understanding of the theory was that only gravitons could pass through a brane. We could therefore still do with lasers
 
bapowell said:
No, it's just that gravity has more ground to cover. If you imagine that all the forces should be of roughly equal strength, but that electromagnetism and the nuclear forces only operate in our 3 spatial dimensions while gravity must contend with 9 dimensions, you can easily see how it gets "spread out" and diluted.

A clarification question: This "diluting" only happens in theories where our universe is actually just a 3 spatial brane in a higher dimensional world, as opposed to a 9 spatial dimension universe with 6 curled up, Correct?

If not, I'm having trouble seeing how light and other interactions can avoid the curled dimensions.
If yes, then it seems like if our 3 spatial brane is curved in the higher dimensions, that the gravitons leaking out could hit back on the brane elsewhere ... therefore causing what appears to be "more gravity from nothing". Or is there something which prevents gravitons from "leaking in", and they can only "leak out"?
 

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