Can Black Holes Be Stabilized to Prevent Decay?

In summary, there are theories that suggest that black holes can be created by particle accelerators with high energy levels, but these black holes are unstable and will eventually evaporate due to Hawking radiation. It is possible to stabilize a black hole by adding enough mass to counter the radiation, but it would have to be virtually maximal in terms of spin and charge. However, achieving such a maximal black hole is difficult and defies certain laws of black hole thermodynamics.
  • #1
Ansuman
25
0
Till sometime it was believed that Black Holes were impossible to create ( made by men ), now some theories which were added to the Standard Model show that the Particle Accelerators having energy levels of TeV can actually produce black holes ( like LHC ) !

Okay but now they are unstable, they are going to vaporize due to the constant loss of mass by the Hawking Radiation. Isn't there some way in which we can actually stabilize the Black Hole so that it gobbles up more mass than it loses, slowly increasing its size and effect.

The answer may be hypothetical...no worries. Any help will be appreciated. Thanks


P.S.- I am not making a black hole either, so you can help me out freely :P
 
Physics news on Phys.org
  • #2
The same theories that might include the possibility to produce microscopic black holes also predict its evaporation.
There is no known theory which would predict the production, but not the evaporation of microscopic black holes. In addition, that would be incompatible with astronomic observations, as it would convert all neutron stars into black holes quickly - and we do observe neutron stars.

You can stabilize a small black hole if you shoot enough mass on it to counter Hawking radiation. That needs some minimal mass of the order of millions of tons if I remember correctly. There is a hypothetical concept to generate such a massive black hole with really intense lasers - a controlled black hole would be a very useful source of radiation, and the ultimate trash bin.
 
  • #3
Ansuman said:
Till sometime it was believed that Black Holes were impossible to create ( made by men ), now some theories which were added to the Standard Model show that the Particle Accelerators having energy levels of TeV can actually produce black holes ( like LHC ) !

Okay but now they are unstable, they are going to vaporize due to the constant loss of mass by the Hawking Radiation. Isn't there some way in which we can actually stabilize the Black Hole so that it gobbles up more mass than it loses, slowly increasing its size and effect.

The answer may be hypothetical...no worries. Any help will be appreciated. Thanks


P.S.- I am not making a black hole either, so you can help me out freely :P

Both spin and charge reduce Hawking radiation (see equations 2.28 & 2.29 on page 10 of http://www.fysik.su.se/~narit/bh.pdf) though the BHs would have to be virtually maximal (i.e. a2+Q2≈M2) in order for them to have any stability.
 
  • #4
stevebd1 said:
Both spin and charge reduce Hawking radiation (see equations 2.28 & 2.29 on page 10 of http://www.fysik.su.se/~narit/bh.pdf) though the BHs would have to be virtually maximal (i.e. a2+Q2≈M2) in order for them to have any stability.

What would prevent such a maximal B-hole from decaying by emitting a charged particle - such as an electron - and becoming sub-maximal?
 
  • #5
dauto said:
What would prevent such a maximal B-hole from decaying by emitting a charged particle - such as an electron - and becoming sub-maximal?

The tricky part would be getting the BH to be maximal in the first place. The only way you could add charge or angular momentum is via objects of mass which have these properties which, in turn, also add mass, meaning that M2 will almost certainly always be greater than a2+Q2. A maximal BH also defies the third law of BH thermodynamic due to the Killing surface gravity (κ) and (supposedly) entropy become zero. Some larger cosmic black holes are considered 'close' to maximal with a spin parameter of a=0.998M but for a micro BH to have any kind of live span, it would have to be within 20-30 decimal places of being maximal.
 

1. Can we physically stabilize a black hole?

No, we cannot physically stabilize a black hole. According to Einstein's theory of general relativity, black holes are regions of spacetime with a gravitational pull so strong that nothing, including light, can escape. This intense gravitational pull is what gives black holes their stability.

2. Can we control the size of a black hole?

No, we cannot control the size of a black hole. The size of a black hole is determined by its mass. As more matter gets sucked into a black hole, its mass and size will increase, making it more stable.

3. Can we use technology to stabilize a black hole?

Currently, we do not have the technology to directly stabilize a black hole. However, scientists are researching ways to manipulate and harness the intense gravitational pull of black holes for potential future technologies.

4. Can we stop a black hole from growing?

No, we cannot stop a black hole from growing. As mentioned before, the size and stability of a black hole are directly related to its mass. Unless something were to enter and disrupt the black hole, it will continue to grow as it absorbs more matter.

5. Can we predict when a black hole will become unstable?

Currently, we do not have the ability to predict when a black hole will become unstable. However, scientists are constantly studying and observing black holes to gain a better understanding of their behavior and potential instabilities.

Similar threads

  • Astronomy and Astrophysics
Replies
11
Views
254
  • Special and General Relativity
Replies
4
Views
368
  • Special and General Relativity
2
Replies
67
Views
3K
  • Sci-Fi Writing and World Building
Replies
25
Views
373
Replies
2
Views
828
  • High Energy, Nuclear, Particle Physics
Replies
7
Views
2K
  • Special and General Relativity
Replies
2
Views
818
  • Special and General Relativity
Replies
20
Views
806
  • High Energy, Nuclear, Particle Physics
Replies
7
Views
1K
  • Special and General Relativity
4
Replies
114
Views
5K
Back
Top