Off-shell central charge/dimensions in string theory.

In summary, the conversation discusses the idea of using non-critical and critical strings as different aspects of the same theory, with the non-critical character providing virtual dimensions and potentially guiding the choice of vacuum. The theory, proposed by B.B. Deo, has been placed on arxiv for 13 years, but has not gained much attention. The idea is to use non-critical strings as a guide to compactification, specifically exploring the concept of off shell mass and applying it to critical strings. The goal is to see if there is a preferential way to fold based on different values of the central charge.
  • #1
MTd2
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Instead of thinking of non - critical and critical strings, why not thinking about those as 1 aspect of the same theory, where the non - critical character provides a kind of virtual dimensions. Maybe this could somehow guide a preferential choice of the vaccuum?

For example, this theory, could work as a guide, or attractor:

http://arxiv.org/PS_cache/arxiv/pdf/1102/1102.0129v1.pdf
 
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  • #2
For 13 years, the first author (B.B. Deo) has been placing papers on the arxiv on this theme, and I found nothing but self-citations for his work. It doesn't inspire confidence that it's worth deciphering; everything suggests that studying the paper will reduce to identifying the places where it goes wrong.
 
  • #3
The idea of the title was mine. The author's work is not direclty related to that. The only relation is, for example, it would be suited as kind of atractor.
 
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  • #4
What is the idea? To use noncritical string theory so we can work directly in four dimensions?
 
  • #5
No, I was thinking use non critical strings as a guide to compactification. For example, consider the concept of off shell mass, which is based in non observable violations of special relativy. Extend that to the critical strings, in which one of the fundamental properties to be conserved is the central charge. So, let it be a sum on c=/=0. And take several values to see if there is a preferential way to fold.
 

Related to Off-shell central charge/dimensions in string theory.

1. What is an off-shell central charge in string theory?

An off-shell central charge, also known as a central extension, is a mathematical quantity that characterizes the symmetry of a physical theory. In string theory, this symmetry is known as conformal symmetry, and the off-shell central charge plays a crucial role in determining the dimensions of physical states.

2. How is the off-shell central charge related to the dimensions of physical states?

The off-shell central charge is related to the dimensions of physical states through the Virasoro algebra, which is a set of mathematical equations that describe the symmetry of string theory. The off-shell central charge appears as a coefficient in these equations, and the dimensions of physical states can be calculated using this coefficient.

3. What is the significance of off-shell central charge in string theory?

The off-shell central charge is significant because it is a fundamental quantity that characterizes the symmetry of string theory. It appears in many important equations and plays a crucial role in determining the dimensions of physical states, which are essential for understanding the behavior of strings in different situations.

4. How is the off-shell central charge calculated in string theory?

The off-shell central charge is typically calculated using mathematical techniques such as conformal field theory or operator product expansion. These techniques involve manipulating mathematical expressions that describe the symmetry of string theory, ultimately leading to the determination of the off-shell central charge.

5. Can the off-shell central charge be experimentally measured?

No, the off-shell central charge cannot be experimentally measured because it is a purely mathematical quantity. However, its effects can be observed through the predictions it makes for the dimensions of physical states in string theory. These predictions can be tested through experiments and observations, providing evidence for the validity of the off-shell central charge in string theory.

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