Is there a new objection to wormholes based on information loss?

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In summary, there is a new objection to wormholes regarding the possibility of information loss in a local region. While this is a concern for black holes, it is not applicable to wormholes as the location of the "lost" information is clear. Therefore, there is no "wormhole information problem" and this objection is not supported by current physics theories.
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sshai45
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"New" objection to wormholes

Hi.

I saw on this site:

http://physics.stackexchange.com/questions/19754/how-long-would-it-take-to-travel-through-a-wormhole

Wormholes linking distant spacetime points are forbidden in string theory (as far as we know) and in modern gravity, because you would be able to make information loss in a local region by dumping one of two entangled pairs into the wormhole, and letting it come out elsewhere.

Has anyone else seen this objection? It's one I haven't seen before, thus the scare-quoted "new" in the title. Not sure if this is the right place to post or if it should be posted in the "beyond the standard model" section, but since the objection apparently isn't just in string theory, but in "modern gravity"...
 
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String theory has nothing specific to say about information loss.

Preservation of information ("unitary evolution" from initial conditions) is basic to quantum theory.

Information loss through a wormhole is not a concern, because the location of the "lost" information is perfectly clear (on the other side of the wormhole). The info is not lost.

Information loss is concern, however, for black holes. They swallow the information, evaporate, and thereby vanish from the universe along with the info they ingested. This is the so-called "Black hole information problem".

Bottom line: There is no "wormhole information problem".
 
  • #3


HarryRool said:
String theory has nothing specific to say about information loss.

Preservation of information ("unitary evolution" from initial conditions) is basic to quantum theory.

Information loss through a wormhole is not a concern, because the location of the "lost" information is perfectly clear (on the other side of the wormhole). The info is not lost.

Information loss is concern, however, for black holes. They swallow the information, evaporate, and thereby vanish from the universe along with the info they ingested. This is the so-called "Black hole information problem".

Bottom line: There is no "wormhole information problem".

So then why the objection? As if it's based on real physics, one should be able to find a textbook, paper, etc. somewhere that mentions it. But this suggests it isn't.
 
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What is a wormhole?

A wormhole is a hypothetical tunnel-like structure in space-time that connects two distant points in the universe. It is a concept that has been explored in science fiction and is currently a topic of scientific research.

What is the new objection to wormholes?

The new objection to wormholes is based on the idea that they may not be stable enough to be traversable. This means that the tunnel may collapse, making it impossible to travel through.

What evidence supports this objection?

Scientists have used mathematical models and simulations to study the stability of wormholes. These studies have shown that the exotic matter needed to keep a wormhole open may not be able to withstand the forces of gravity, causing the tunnel to collapse.

Can wormholes ever be stable enough for travel?

While the current evidence suggests that wormholes may not be stable enough for travel, further research and technological advancements may provide new insights and solutions to this problem. It is still a topic of ongoing scientific debate and exploration.

What other challenges do wormholes face?

In addition to stability, wormholes also face challenges such as the need for exotic matter, the potential for time travel paradoxes, and the possibility of high levels of radiation near the entrance. These challenges make the concept of wormholes a complex and speculative topic in the scientific community.

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