String stars instead of black holes?

  • Thread starter Maniax101
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  • #1
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Hey guys.
If the string theory is correct (and strings are fundamental and the last building block) I had a thought that if and when a star collapses (due to whatever reason) it can reach neutron star status. Add more mass and it can collapse to a quark star. Now say that we add more mass and it collapses even further - to a black hole. But if strings are there and are so rigid as they should be, maybe they can withhold this last collapse. The star shrinks by a huge factor (since strings are so small, even compared to quarks) but never reaches the black hole point-state. We would have a mind-numbingly small chunk of material all in all resembling a black hole, but but not infinitley small...

That would take away the infinites of black holes... small and dense? yes! infinite? no!


Thoughts?
 

Answers and Replies

  • #2
181
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Hello, I had the same idea several years ago that a Kerr ring singularity might basically be a closed string.
-I mean they both spin in one direction only and are incredibly flat and thin (one dimensional).
-Their size is on the order of Planck’s length.
-The singularity's spinning surface is wriggling quantum foam and a string’s surface vibrates.
-A closed string vibrates to represent nuclear particles and the higher the frequency the more mass the particle has. Since they are one dimensional, if a googol strings were crushed onto each other by gravity, then they would still look like one closed string (or ring singularity). However from harmonics, the frequency of the vibration would multiply and become infinitely high, thus representing a particle of incredible mass, like a singularity.
-As you mention, we already know that gravity can implode a star into neutrons (and perhaps quarks), so why not even smaller basic structures?
It just seems to me that string theorists might like to know that GR may actually predict string-like structures. Unfortunately, it is not possible to prove this.
 
  • #3
mathman
Science Advisor
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Black holes are masses small enough so that the escape velocity is greater than the speed of light. What happens inside the hole is very much an open question. General Relativity has the mass compressing to a singularity. However quantum theory makes this highly unlikely. In any case attempts to reconcile them (GR and quantum) here lead to nonsense. Someday string theory may resolve this problem, but it remains open for now.
 
  • #4
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The Fuzzball Hypothesis: http://en.wikipedia.org/wiki/Fuzzball_(string_theory [Broken]).
 
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  • #5
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Thanks for the Fuzzball link. It was almost exactly as what I was thinking of. Reading about it now, I remember browsing the subject long ago.

Thanks again
 

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