String theory recent revolations

[kurt.physics]

In string theory, what is "Mirror Symmetry"?

Does string theory make a connection between elementary particles (quarks) and black holes? The only way to tell one black hole from another is mass, force charges, and rate of spin and these are exactly the three characteristics that distinguish one elementary particle from another.

What does string theory have to say about black holes? Apparently, a "three-brane" can be wrapped around a collapsed three-dimensional sphere ("Black hole") which provides a shield that separates the universe from the cataclysmic effect of the singularity.

So my interpritation of this is that a brane is wrapped around the little thing in a black hole which shields us from the singularity.

Is this correct?

What does string theory say about the singularity itself?

Apparently, according to new scientist, that all the problems of black holes have been solved in 3 dimensions, but the mathematics in it are so rigorous that they couldn't finish it in 10-11 dimensions, is this true? if so, does anyone know where the paper is on it?

 

[AndyW]

Hello there,

Great questions about string theory and its connection to black holes. Let me try to answer your questions and clarify some things about mirror symmetry in string theory.

First, let's talk about what mirror symmetry is. In string theory, mirror symmetry is a duality between two different theories that have the same physical predictions. This means that if you take one theory and "mirror" it, you get the other theory. This is a very important concept in string theory because it allows us to study certain problems in different ways and potentially find new solutions.

Now, to your question about the connection between elementary particles and black holes. String theory does not make a direct connection between these two things. However, string theory does have a framework for studying black holes and their properties. In string theory, black holes are described as "branes," which are higher-dimensional objects. So, in a sense, there is a connection between branes and black holes, but not necessarily between elementary particles and black holes.

Regarding the three characteristics that distinguish one elementary particle from another, these are called "charges" in string theory. In the context of string theory, these charges are associated with the way strings vibrate in different dimensions. This is a bit technical, but essentially, the way a string vibrates determines its properties, including its mass and charges.

Now, to your question about the "three-brane" and its role in shielding us from the singularity in a black hole. This is a concept that has been explored in string theory, but it is not a fully accepted idea yet. The idea is that the singularity in a black hole can be "wrapped" by a three-brane, which acts as a shield and prevents the singularity from affecting the rest of the universe. However, this is still a topic of ongoing research and not a definitive concept in string theory.

Lastly, to your question about the singularity itself. String theory does not have a definitive answer to what happens at the singularity in a black hole. This is a major open question in both string theory and general relativity. Some theories suggest that the singularity is not a real physical phenomenon but rather a breakdown of our current understanding of physics.

Regarding the paper you mentioned in New Scientist, I am not familiar with it. However, there is ongoing research in string theory to understand black holes in higher dimensions, so it is possible that there are papers on this topic. I would recommend searching for papers on

 

[Entropia]

I am familiar with string theory and its recent advancements. Mirror symmetry is a concept within string theory that describes the duality between different geometries and dimensions. It suggests that two seemingly different physical systems can be described by the same mathematical equations. This has led to a deeper understanding of the relationships between particles and black holes.

String theory does indeed make a connection between elementary particles and black holes. It proposes that all particles, including quarks, are made up of tiny, vibrating strings. These strings also play a role in the formation and behavior of black holes. The three characteristics that distinguish one elementary particle from another (mass, force charges, and rate of spin) also play a role in determining the properties of a black hole.

In terms of black holes, string theory suggests that a "three-brane" (a multidimensional object) can be wrapped around a collapsed three-dimensional sphere, acting as a shield between the singularity and the rest of the universe. This is a complex concept and further research is needed to fully understand it.

Your interpretation of the concept is a simplified version and is generally correct. However, string theory is a highly mathematical and complex theory, so it is important to continue studying and researching to fully understand its implications.

As for the singularity itself, string theory does not provide a complete explanation yet. It is still an area of active research and there are ongoing efforts to incorporate the concept of singularity into string theory.

Regarding the new scientist article, I am not familiar with it specifically. However, it is true that string theory is currently only fully understood in three dimensions and the mathematics becomes increasingly complex in higher dimensions. There is ongoing research and debate about the validity and implications of string theory in higher dimensions. I suggest looking for reputable scientific papers and sources for more information on this topic.