- #1
sanman
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Is String Theory Finally Testable?
- Thread starter sanman
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In summary, recent research has found that string theory may be testable by setting bounds on the assumptions of Lorentz invariance, analyticity, and unitarity. These assumptions can be violated by either the existence of new physics or the breakdown of one of these assumptions in the short distance theory. Technological advancements may help identify the single geometry that fits our universe and confirm the validity of string theory.
- #2
vanesch
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From the link:
S-matrix theory from the sixties also had these three basic ingredients...
S-matrix theory from the sixties also had these three basic ingredients...
- #3
francesca
- 147
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http://arxiv.org/abs/hep-ph/0604255"
Jacques Distler, Benjamin Grinstein, Rafael A. Porto and Ira Z. Rothstein
We show that the coefficients of operators in the electroweak chiral Lagrangian can be bounded if the underlying theory obeys the usual assumptions of Lorentz invariance, analyticity, unitarity and crossing to arbitrarily short distances. Violations of these bounds can be explained by either the existence of new physics below the naive cut-off of the the effective theory, or by the breakdown of one of these assumptions in the short distance theory. As a corollary, if no light resonances are found, then a measured violation of the bound would falsify generic models of string theory.
It was told about a former Distler's work in PF...
https://www.physicsforums.com/showthread.php?t=119368"
Jacques Distler, Benjamin Grinstein, Rafael A. Porto and Ira Z. Rothstein
We show that the coefficients of operators in the electroweak chiral Lagrangian can be bounded if the underlying theory obeys the usual assumptions of Lorentz invariance, analyticity, unitarity and crossing to arbitrarily short distances. Violations of these bounds can be explained by either the existence of new physics below the naive cut-off of the the effective theory, or by the breakdown of one of these assumptions in the short distance theory. As a corollary, if no light resonances are found, then a measured violation of the bound would falsify generic models of string theory.
It was told about a former Distler's work in PF...
https://www.physicsforums.com/showthread.php?t=119368"
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- #4
SF
http://www.scienceblog.com/cms/physicists-find-way-to-see-extra-dimensions-12520.html
Technological improvements to capture more detailed cosmic maps should help narrow down the possibilities and may allow scientists to crack the code of the cosmic energy map - and inch closer to identifying the single geometry that fits our universe.
The implications of such a possibility are profound, says Tye. "If this shape can be measured, it would also tell us that string theory is correct."
LOL. It would?
Technological improvements to capture more detailed cosmic maps should help narrow down the possibilities and may allow scientists to crack the code of the cosmic energy map - and inch closer to identifying the single geometry that fits our universe.
The implications of such a possibility are profound, says Tye. "If this shape can be measured, it would also tell us that string theory is correct."
LOL. It would?
Last edited by a moderator:
What is string theory?
String theory is a theoretical framework in physics that attempts to reconcile the conflicting theories of general relativity and quantum mechanics. It posits that the fundamental building blocks of the universe are not particles, but rather tiny, vibrating strings.
What makes string theory testable?
String theory makes predictions that can potentially be tested through experiments, such as the behavior of particles at high energies or the existence of extra dimensions. However, these predictions are currently beyond the capabilities of our technology.
How do scientists plan to test string theory?
Scientists plan to test string theory by conducting experiments at the Large Hadron Collider and other particle accelerators. They also hope to observe evidence of extra dimensions through astronomical observations and gravitational waves.
What are some challenges in testing string theory?
One of the main challenges in testing string theory is the lack of technology and resources necessary to conduct experiments at the extreme energies and scales required. Another challenge is that string theory is still a theoretical framework and has not yet been fully developed or proven.
What are the potential implications if string theory is proven to be testable?
If string theory is proven to be testable and accurate, it could greatly advance our understanding of the universe and potentially lead to groundbreaking discoveries in physics. It could also have practical applications in areas such as technology and space exploration.
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