Stability of 4D Gravity Model: Examining Possibilities

In summary, the conversation discusses the concept of extending gravity to 4D physics and the challenges associated with it, such as unstable orbits and atoms. The possibility of modifying the model is mentioned, but it is unclear what kind of modifications can be made. The idea of new forms of matter in 4D physics is also brought up. The conversation ends with a question about the necessity of working with one extra dimension in String Theory.
  • #1
Gold Barz
467
0
I know that gravity can be extended to 4D but the conclusion always seem to be unstable, is the reason why they come up with unstable orbits and atoms is because they take how gravity acts here in 3D physics and apply it the same way to 4D physics? How about modificating the model? but we just don't know what kind of modifications can be made so we don't make any modifications...is this even remotely correct?

Is there no way that a isotropic 4D gravity model can become stable?

I might even suggest something even more wackier, like might there be new forms of matter in 4D physics, I would think that there would be a significant effect to elementary particles.
 
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  • #2
Who else feels that we can't just extend basic mathematical equations to 4D models?...
 
  • #3
Why are you so much interested in 4D models? They are not physical, unless you assume (a-la strings) that one of them is small or unobservable.

What need is there for that? In String Theory, the formalism requires the extra dimensions to work properly. In your case, why would you prefer to work with one extra dimension?
 

1. What is a 4D gravity model?

A 4D gravity model is a theoretical framework that attempts to explain the gravitational force in four-dimensional space-time, as described by Einstein's theory of general relativity. It takes into account the curvature of space-time and the interaction between matter and energy in order to describe the behavior of massive objects.

2. How does the stability of a 4D gravity model affect our understanding of gravity?

The stability of a 4D gravity model is crucial in determining whether the model accurately reflects the behavior of gravity in our universe. If the model is stable, it means that it can withstand small perturbations and still produce consistent and reliable predictions. This gives us confidence in the model's ability to accurately describe the behavior of gravity.

3. What factors influence the stability of a 4D gravity model?

There are several factors that can affect the stability of a 4D gravity model, including the strength of the gravitational force, the curvature of space-time, and the mass and energy of objects in the universe. Additionally, the presence of other fundamental forces, such as electromagnetism and the strong and weak nuclear forces, can also play a role in determining the stability of the model.

4. How do scientists examine the stability of a 4D gravity model?

Scientists use various mathematical and computational techniques to analyze the stability of a 4D gravity model. This can include performing simulations and calculations to see how the model responds to different scenarios and perturbations. Additionally, experimental data from observations and measurements of the behavior of gravity in our universe can also be used to test the stability of the model.

5. What are the implications of an unstable 4D gravity model?

If a 4D gravity model is found to be unstable, it would indicate that the model is not an accurate representation of the behavior of gravity in our universe. This could mean that our current understanding of gravity is incomplete or incorrect, and may require further research and development of new theories. It could also have significant implications for our understanding of the universe and our ability to make accurate predictions about its behavior.

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