Are Cosmic Strings Connected to Other Dimensions and Gravitons?

AI Thread Summary
Cosmic strings are one-dimensional topological defects that exist in the fabric of space, characterized by having length but no width or height. They are not directly related to other dimensions or gravitons, although they can manifest as mass and thus act as a source of gravitation. The discussion references a wiki article and a research paper that explore the theoretical aspects of cosmic strings and their potential real-world detection. While the interpretation of cosmic strings is based on existing literature, the accuracy of these interpretations is not guaranteed. The conversation highlights interest in further understanding and locating cosmic strings in practical terms.
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I have reading about cosmic strings and have some questions about them, are they in any way related to other dimensions even though they are one dimensional? Also do they have anything to do with gravitons and the cause of gravity?
 
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No, they are simply topological defects that have only 1 dimension. By dimension we mean the mathematical dimensions, like the XYZ axis on a graph. A cosmic string would be a defect running in 1 dimension, so it would have length but no width or height. (The wiki article says it would have a diameter of about 1 femtometer, which is about the diameter of a proton, so it may or may not be actually 1 dimensional, but for all intents and purposes it can be considered 1d)

They are not related to gravitation, although they would manifest as mass, and would therefore be a source of gravitation like all mass and energy are.

But all that is my interpretation of what the wiki article says, so I can't guarantee that it is accurate.
http://en.wikipedia.org/wiki/Cosmic_string
 
The paper was helpful and interesting so thank you, I saw as I was reading it, it might be possible to locate the strings theoretically in the real world. Besides what is in the paper would any of you guys know how this could be done.
 
https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
Why was the Hubble constant assumed to be decreasing and slowing down (decelerating) the expansion rate of the Universe, while at the same time Dark Energy is presumably accelerating the expansion? And to thicken the plot. recent news from NASA indicates that the Hubble constant is now increasing. Can you clarify this enigma? Also., if the Hubble constant eventually decreases, why is there a lower limit to its value?
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