Is There a Minimum Value in String Theory?

  • Context: Graduate 
  • Thread starter Thread starter PRodQuanta
  • Start date Start date
Click For Summary

Discussion Overview

The discussion revolves around the implications of string theory, particularly whether there exists a minimum value or size for strings and how this affects the concept of measurement in physics. Participants explore the nature of strings, their sizes, and the consequences of these ideas on fundamental physics.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant suggests that if everything is made of strings, then there must be a minimum size for these strings, implying that values smaller than this size (e.g., 0.5) would not exist.
  • Another participant agrees that strings may come in one size only, proposing that this singular size could lead to the formation of quarks and other particles.
  • A different viewpoint is introduced, stating that there are believed to be different types of strings, such as gravitons, which may not be confined to our three-dimensional universe and could interact with other branes.
  • A suggestion is made to refer to an article by Ed Witten that discusses the effects of having a minimum length in the context of string theory.

Areas of Agreement / Disagreement

Participants express differing views on the nature of strings, with some proposing a singular size and others suggesting the existence of multiple types of strings. The discussion remains unresolved regarding the implications of these ideas on the concept of minimum values in string theory.

Contextual Notes

There are limitations in the assumptions made about string sizes and types, as well as the implications of these assumptions on physical measurements. The discussion does not resolve these complexities.

PRodQuanta
Messages
341
Reaction score
0
Correct me if I am wrong (which I may very well be). I was thinking about string theory, and what it would imply. Now, if everything was made up of strings, then this would imply that there is a minimum value for everything, correct?

I.E.- If the size of a string would represent 1, then there would be no such thing as the number .5. This number would imply something smaller than a string, which (I think) would be impossible.

Like I said, correct me if I am wrong. I am either stating the obvious (where I didn't know it was obvious), or I am WAY off base.

Paden Roder
 
Physics news on Phys.org
Well I would think youre correct in stating that strings come in one size only and this would make sense as then many strings form to make quarks etc. so I think and i may be wrong that there is one type of string in one size.
 
There is believed to be different types of strings. For example gravitons which are not connected to our brane or three dimensional universe. Sorry about any wrong spelling. Gravitons are believed to floot into another brane. Connected strings just vibrate at different rates creating differet quarks and inturn different atoms.
 
See if you can get your hands on an article by Ed Witten entitled "Reflections on the fate of spacetime". He described some of the effects of having a minimum length.

You should be able to get a preprint off the web.
 

Similar threads

Graduate The Emergence of Space-time in String Theory
  • · Replies 33 ·
2
Replies
33
Views
10K
Graduate Dasgupta et al., What is the alternative to a unique dS vacua?
  • · Replies 14 ·
Replies
14
Views
5K
Undergrad Strings 2025 Conference: Insights, Criticisms, and Key Highlights
  • · Replies 30 ·
2
Replies
30
Views
12K
Undergrad Is loop quantum gravity dual to CFT?
  • · Replies 13 ·
Replies
13
Views
5K
High School Size of strings in string theory
  • · Replies 11 ·
Replies
11
Views
4K
High School Balancing theories and empirical data, especially concerning string theory
  • · Replies 47 ·
2
Replies
47
Views
10K
Graduate Can String Theory Finally Win a Nobel Prize?
  • · Replies 40 ·
2
Replies
40
Views
8K
Undergrad Infinite number of spatial dimensions (maybe also time dimensions)
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Can Membrane Field Theory Elucidate M-Theory?
  • · Replies 9 ·
Replies
9
Views
4K
Graduate Different symmetries or no symmetries in string theory?
  • · Replies 4 ·
Replies
4
Views
3K