Exploring the Concept of Point-like Particles in String Theory

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SUMMARY

The discussion centers on the compatibility of point-like particles, specifically quarks, within string theory. It asserts that while strings are fundamentally one-dimensional, they can appear 0-dimensional in practical observations due to their minuscule size compared to other particles. The conversation also highlights M-Theory's inclusion of objects across various dimensions, indicating that quarks are not strictly 0-dimensional but rather part of a broader dimensional framework.

PREREQUISITES
  • Understanding of string theory fundamentals
  • Familiarity with M-Theory concepts
  • Knowledge of particle physics, specifically quarks
  • Basic grasp of dimensional analysis in theoretical physics
NEXT STEPS
  • Research the implications of M-Theory on particle physics
  • Explore the dimensionality of strings in string theory
  • Study the characteristics and behaviors of quarks
  • Investigate the relationship between point-like particles and string theory
USEFUL FOR

The discussion is beneficial for theoretical physicists, students of advanced physics, and anyone interested in the intersection of string theory and particle physics.

s4syth
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Assuming that string theory does not rule out point-like particles such as quarks, how can a group of one-dimensional objects be seen as having no dimensions at all?
 
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Strings are much smaller than the particles we currently observe, so for all (practical) matters and purposes they are 0-dimensional - except compared to other strings.

Strings are 1-dimensional, so 0-dimensional objects are "ruled out". However, in M-Theory objects of all sorts of dimensions (0, 1, 2, ..., N) are supposed to exist.
 
So quarks would not really be 0 dimensional. Thanks!
 

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