- #1
disturbed1
- 28
- 0
I am interested in the 11 dimensions proposed by string theory. What defines these dimensions and have they been identified.
11 dimensions proposed by string theory
- Context: Graduate
- Thread starter disturbed1
- Start date
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Discussion Overview
The discussion revolves around the concept of 11 dimensions proposed by string theory, exploring their definitions, identification, and implications within theoretical physics. It touches on mathematical foundations, potential experimental validations, and cultural interpretations of extra dimensions.
Discussion Character
- Exploratory
- Technical explanation
- Conceptual clarification
- Debate/contested
Main Points Raised
- One participant expresses interest in understanding what defines the 11 dimensions and whether they have been identified.
- Another participant shares their struggle with comprehending higher dimensions, particularly the 5th dimension, and expresses skepticism about discussing 11 dimensions.
- A different participant suggests that examining other dimensions might clarify the first four, proposing that dimensions could be grouped by similar properties.
- A participant explains that the concept of extra dimensions arises from mathematical calculations in string theory, which is a candidate for quantum gravity, and mentions the lack of measurable results as a criticism of string theory.
- Reference is made to Lawrence Krauss's book, which discusses the idea of extra dimensions in physics and their connection to supersymmetry and the Standard Model, suggesting that these dimensions could unify quantum forces.
- One participant recommends a book that discusses extra dimensions, although they have not finished reading it, indicating it contains relevant information.
- A participant questions the meaning of "have they been identified," implying uncertainty about the status of these dimensions.
Areas of Agreement / Disagreement
Participants express varying levels of understanding and skepticism regarding the concept of 11 dimensions, with no consensus on their identification or implications. Multiple viewpoints on the significance and clarity of these dimensions remain present.
Contextual Notes
Limitations include the lack of empirical evidence for extra dimensions, the dependence on theoretical frameworks like string theory and supersymmetry, and the unresolved status of mathematical calculations related to these dimensions.
- #2
Critical_Pedagogy
- 30
- 0
i've been able to somewhat grasp the 4th spatial dimension,
the 5th is out of my mind's capability.
you're talking about 11?
Don't go there sista.
the 5th is out of my mind's capability.
you're talking about 11?
Don't go there sista.
- #3
disturbed1
- 28
- 0
maybe if one was to look at another of the dimensions the first four would be clearer. Perhaps they are grouped with similar properties like the first four dimensions. anyway, interesting stuff.
- #4
rtharbaugh1
- 311
- 0
Hi
The extra-dimensions idea comes from mathematical calculations done in string theory, which is one of the candidates for a theory of quantum gravity. For a rather good introductory tutorial, go to this site:
http://www.sukidog.com/jpierre/strings/
String theory is recently criticized for not producing any measurable results, but there is still hope. Perhaps the new high energy colliders scheduled to come on-line in the near future will give us better information, or perhaps some observations in deep field astrophysics will prove convincing.
Hope this helps.
Richard
The extra-dimensions idea comes from mathematical calculations done in string theory, which is one of the candidates for a theory of quantum gravity. For a rather good introductory tutorial, go to this site:
http://www.sukidog.com/jpierre/strings/
String theory is recently criticized for not producing any measurable results, but there is still hope. Perhaps the new high energy colliders scheduled to come on-line in the near future will give us better information, or perhaps some observations in deep field astrophysics will prove convincing.
Hope this helps.
Richard
- #5
selfAdjoint
Staff Emeritus
Gold Member
Dearly Missed
- 6,843
- 11
Lawrence Krauss's new book Hiding in the Mirror is an excellent discussion of the idea of more dimensions and "other" dimensions in popular culture, in the arts, and especially in physics. He carefully explains how physicists came to posit extra dimensions and why, considering just the Standard Model, they have very positive things to contribute. It is connected to supersymmetry, which does nice things for unifying the three quantum forces (electromagnetism, strong and weak), and which requires extra dimension to work smoothly. This is all (semi) independent of string physics, and there is a lot of hope that the new collider LHC which is building at CERN, will show some evidence.
- #6
hossi
- 198
- 0
elegant?
I would carefully like to suggest https://www.amazon.com/gp/product/0375708111/?tag=pfamazon01-20. Carefully because I have not actually finished the book but I believe it says something about extra dimensions.
The part I read was very nice though.
I am not really sure what you mean with 'have they been identified'. I believe one should be somewhere in this ----------> direction
I would carefully like to suggest https://www.amazon.com/gp/product/0375708111/?tag=pfamazon01-20. Carefully because I have not actually finished the book but I believe it says something about extra dimensions.
The part I read was very nice though.
I am not really sure what you mean with 'have they been identified'. I believe one should be somewhere in this ----------> direction
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