String Theory & Dimensions: Interactions Explained

  • Context: Graduate 
  • Thread starter Thread starter Pjpic
  • Start date Start date
  • Tags Tags
    Dimensions String
Click For Summary
SUMMARY

String theory utilizes multiple dimensions to elucidate the interactions between particles, yet the mathematical foundation of these dimensions raises questions about their physical relevance. The discussion highlights that the challenge lies in reconciling classical string theory with quantum mechanics, as adding interactions complicates the theoretical framework. A consistent theory emerges only when the dimensions of spacetime are precisely defined, with no compelling physical rationale provided for the existence of these numerous dimensions.

PREREQUISITES
  • Understanding of string theory fundamentals
  • Familiarity with quantum mechanics principles
  • Knowledge of mathematical frameworks in theoretical physics
  • Concept of spacetime dimensions in physics
NEXT STEPS
  • Research the mathematical foundations of string theory
  • Explore the implications of quantum mechanics on classical theories
  • Investigate the role of dimensions in theoretical physics
  • Study the challenges of unifying string theory with quantum field theory
USEFUL FOR

Physicists, theoretical researchers, and students interested in advanced concepts of string theory and the interplay between dimensions and particle interactions.

Pjpic
Messages
235
Reaction score
1
Does string theory use multiple dimensions to explain why certain particles don't interact with others? If so, why wouldn't shape be used; as it is when explaining why certain proteins don't interact with cells?
 
Physics news on Phys.org
As far as I'm concerned, the multiple dimensions used in string theory have a purely mathematical origin. The problem does not arise when looking at interactions, but when trying to make "classical" string theory compatible with quantum mechanics. Adding interactions only makes things more complicated. When you do the math, you get a (more-or-less) inconsistent theory, unless the number of dimensions of spacetime is exactly right. AFAIK there is no physical argument that explains or even makes plausible why there should be so many dimensions.
 

Similar threads

Graduate String theory and locality of small dimensions
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad What Shapes Can Extra Dimensions Take in String Theory?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate String Theory in N dimensions?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad String theory in 4 dimensions?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Trying To Conceptualize Two Dimensions Of Time
  • · Replies 2 ·
Replies
2
Views
5K
Undergrad Strings 2025 Conference: Insights, Criticisms, and Key Highlights
  • · Replies 30 ·
2
Replies
30
Views
11K
High School The dimension of time in String Theory
  • · Replies 2 ·
Replies
2
Views
2K
Graduate The Emergence of Space-time in String Theory
  • · Replies 33 ·
2
Replies
33
Views
9K
Graduate Different symmetries or no symmetries in string theory?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad String theory vs Quantum field theory
  • · Replies 1 ·
Replies
1
Views
3K