Has anyone worked on higher dimensional strings?

In summary, the conversation discusses the concept of string theory and the idea of replacing point-like particles with one-dimensional strings. The suggestion is made to define elementary particles as 2D surfaces or 3D volumes, known as branes, which are already a part of string theory. The conversation questions if anyone is currently working on this theory and if there has been any progress made in this direction.
  • #1
vibe3
46
1
Possibly naive question. Wikipedia describes string theory as follows:
String theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings.
The obvious next step (since string theory hasn't succeeded in describing our universe) would be to define elementary particles as 2D surfaces or 3D volumes or 4D space-time volumes, which may have vibrational modes similar to the 1D strings. Is anyone working on such a theory? Has any progress been made? What is the name of such a theory if it exists?
 
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  • #2
They are called branes (short for membranes) and they are already part of string theory.
 

1. What are higher dimensional strings?

Higher dimensional strings refer to the idea that the universe may have more than the three spatial dimensions we are familiar with (length, width, and height). According to string theory, there may be additional dimensions that are too small for us to perceive directly.

2. How are higher dimensional strings studied?

Higher dimensional strings are studied through mathematical models and theoretical physics. Scientists use complex equations and calculations to explore the properties and behavior of these extra dimensions.

3. What implications do higher dimensional strings have?

The concept of higher dimensional strings has significant implications for our understanding of the universe and the laws of physics. It could potentially help explain phenomena such as dark matter and dark energy, as well as provide a unified theory of all forces in the universe.

4. Has anyone successfully worked on higher dimensional strings?

There have been numerous scientists and researchers who have contributed to the development of higher dimensional string theories. Some notable figures include Brian Greene, Leonard Susskind, and Juan Maldacena.

5. Are there any experiments being conducted to test higher dimensional strings?

Currently, there are no direct experiments being conducted to test the existence of higher dimensional strings. However, there are ongoing experiments at the Large Hadron Collider that may provide evidence for the existence of extra dimensions, indirectly supporting the concept of higher dimensional strings.

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