As I understand, the minimal length is crucial to any theory of quantum gravity in order for that theory to be consistent. You can look it up yourself.Demystifier said:Why do you think that it might not make sense? What do you see as a potential problem?
In the sense in which the minimal length is present is standard string theory, in the same sense the minimal length is present also in Bohmian string theory. However, Bohmian mechanics claims that standard quantum theory is incomplete, i.e. that one must add something additional that standard quantum theory doesn't have. So one can say that one part of the theory does have the minimal length (as required by quantum gravity, as you said), while the other part of the theory doesn't have it. This other part does not need to have the minimal length for consistency.JG11 said:As I understand, the minimal length is crucial to any theory of quantum gravity in order for that theory to be consistent. You can look it up yourself.
T duality is a fundamental concept in theoretical physics that describes the symmetry between two different physical theories. It states that certain physical quantities (such as the size of a space) in one theory are equivalent to different quantities (such as the inverse of the size) in the dual theory. This duality is important because it allows us to study and understand seemingly different theories as two sides of the same coin, leading to a deeper understanding of the underlying principles of nature.
Currently, there is no evidence to suggest that T duality can be broken at a fundamental level. In fact, it has been observed in various physical phenomena and is a key aspect of many well-established theories, such as string theory and M-theory. However, as our understanding of the universe continues to evolve, it is always possible that new discoveries may challenge our current understanding of T duality.
If T duality were to be broken at a fundamental level, it would have significant implications for our understanding of the underlying principles of physics. It would mean that the two seemingly equivalent theories in the duality are actually distinct and cannot be described in terms of each other. This could potentially lead to major revisions in our current theories and models of the universe.
While there are no specific experiments designed to test T duality, it is a fundamental concept that is constantly being explored and studied in theoretical physics. Many researchers are currently investigating the implications of T duality in different areas, such as black hole physics and cosmology, and are looking for potential ways to experimentally verify its validity.
There is ongoing research and debate about the relationship between T duality and quantum gravity. Some theories suggest that T duality may be a fundamental aspect of quantum gravity, while others propose that it may not be applicable in certain extreme scenarios. Breaking T duality at a fundamental level could potentially provide new insights into the nature of quantum gravity and its interactions with other fundamental forces.