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MTd2
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The coupling constant runs so the Planck scale changes. What is it at the AS point?
MTd2 said:The coupling constant runs so the Planck scale changes. What is it at the AS point?
MTd2 said:What is the problem in not having a Planck scale?
Finbar said:. The physics becomes scale independent at a fixed point.
MTd2 said:Isn't de sitter space scale independent anyway?
MTd2 said:But I am talking about the solution of the einstein equation near the AS. Like in here:
https://www.physicsforums.com/showpost.php?p=3070380&postcount=7
Finbar said:The scale invariant de sitter space near a fixed point will be like a fractal space time not like a classical de sitter. If you like in the classical case there is a fixed scale set by the dimensionful cosmological constant.
The Planck Scale is a fundamental scale in physics that describes the smallest possible unit of length, mass, time, and energy. It is named after physicist Max Planck and is often denoted by the symbol "Lp".
AS gravity, also known as Asymptotic Safety gravity, is a theory of quantum gravity that attempts to reconcile the principles of general relativity and quantum mechanics. It suggests that gravity becomes weak at very small distances, such as the Planck Scale.
The Planck Scale is a key component of AS gravity, as it is the scale at which the theory predicts gravity becomes strong and interacts with other fundamental forces. AS gravity uses the Planck Scale to describe the behavior of gravity at very small distances.
The Planck Scale is important because it is the scale at which quantum effects become significant and our current understanding of gravity breaks down. By studying gravity at the Planck Scale, we can gain a better understanding of how the laws of physics work at the most fundamental level.
The Planck Scale is incredibly small, about 10^-35 meters. This is much smaller than anything we can observe in the universe and is thought to be the scale at which the universe was created during the Big Bang. Understanding the behavior of gravity at the Planck Scale can help us better understand the origins and evolution of the universe.