Cosmic string and vacuum decay

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Thread starter Trollfaz
Start date Jul 15, 2020
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Decay String Vacuum

In summary, cosmic strings are thin and dense filaments of energy that are believed to exist in the fabric of space-time. They are thought to have formed during the early stages of the universe and are related to the phenomenon of vacuum decay, which describes the potential collapse of empty space. While both are theoretical concepts, scientists are actively searching for evidence of these phenomena through experiments and observations.

Jul 15, 2020

Trollfaz

https://arxiv.org/abs/2002.04856
It's proposed that topological defects like cosmic string enhance vacuum decay. I do not quite believe it.

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Aug 2, 2020

shjacks45

Still searching for dark matter, neutrino mass, and proton decay. I like that 10 dimensional string shaped like a rugby ball.

What are cosmic strings?

Cosmic strings are hypothetical one-dimensional objects that are thought to be formed during the early stages of the universe. They are believed to be extremely thin and long objects, with a diameter of about 10^-27 centimeters and a length of millions of light-years.

How are cosmic strings formed?

Cosmic strings are believed to have formed during the process of cosmic inflation, which occurred in the first fraction of a second after the Big Bang. During this rapid expansion, quantum fluctuations in the fabric of space-time could have caused some regions to become denser than others, resulting in the formation of cosmic strings.

What is vacuum decay?

Vacuum decay is a theoretical process in which a false vacuum, a state of space with a lower energy than the true vacuum, can transition into the true vacuum. This process is believed to occur when a false vacuum is disturbed or destabilized, causing it to collapse and release a large amount of energy.

How are cosmic strings related to vacuum decay?

Some theories suggest that cosmic strings could play a role in the process of vacuum decay. It is believed that the presence of cosmic strings could act as a trigger for vacuum decay, causing the false vacuum to collapse and transition into the true vacuum.

What are the potential consequences of vacuum decay?

If vacuum decay were to occur, it could have catastrophic consequences for the universe. The release of energy during this process could lead to the destruction of all matter and the collapse of the universe as we know it. However, the likelihood of this happening is currently unknown and is still a topic of debate among scientists.