Singularity of a black hole

In summary, the conversation discusses the possibility of a point in the collapse of a star where the gravitational force no longer exists due to extreme density, but the curvature of space-time does. However, this is still unknown as we do not have a complete understanding of matter at such extreme conditions.
  • #1
kurious
641
0
When a star of a few solar masses collapses and starts to form a black hole,
if the particles of which the star was made get closer and closer together
as the density increases, will there come a point at which no force mediating
particles have a short enough wavelength to get between the star's particles to cause a force .Will there come a point at which,the gravitational force no longer exists even though the curvature of space-time does because the stress-energy-momentum tensor will still have the value we expect it to?
 
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  • #2
The quick answer: We don't know.

The longer answer: The theory of general relativity says that once inside the event horizon the forces and curvature will increase without bound as you approach the singularity - no known physics will stop the particles from being crushed together. However, we don't have any theory that covers the behavior of matter at these extreme pressures and densities, so it is quite possible that some as-yet-unknown physics comes into play here.
 

1. What is a black hole?

A black hole is a region of space where the gravitational pull is so strong that nothing, not even light, can escape from it. This is due to the extreme bending of space and time caused by the immense mass of the black hole.

2. What is the singularity of a black hole?

The singularity of a black hole is a point of infinite density and zero volume at the center of the black hole. It is where the laws of physics as we know them break down, and our current understanding of the universe cannot fully explain what happens there.

3. How is the singularity of a black hole formed?

The singularity of a black hole is formed when a massive star dies and its core collapses under its own gravity. As the core collapses, it becomes infinitely dense and creates a black hole with a singularity at its center.

4. Can anything escape the singularity of a black hole?

No, nothing can escape the singularity of a black hole. The gravitational pull is so strong that even light cannot escape, which is why black holes are invisible and appear as dark regions in space.

5. What is the significance of the singularity of a black hole?

The singularity of a black hole is significant because it challenges our current understanding of the laws of physics and the nature of space and time. It also plays a crucial role in the study of cosmology and the evolution of the universe.

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