T-duality

From: Nikolaas Van der Heyden (nikolaas.vanderheyden_at_ugent.be)
Date: 07/19/04 

Date: 19 Jul 2004 04:11:27 -0400

Hi

 
I have some difficulties understanding the concept of T-duality in string
theory.

I will refer to the following site:

 

 <http://tena4.vub.ac.be/beyondstringtheory/duality.html>
http://tena4.vub.ac.be/beyondstringtheory/duality.html
 

in which is stated that there is a minimum distance in our universe. Looking
at an even smaller distance does not give any new information, because of
the duality.
 

Can You explain me what this means. It must have something to do with the
fact that small scale theories are equivalent to large scale theories, due
to the T-duality.
 

Thanks a lot
 

Nikolaas Vanderheyden (Belgium, university of Gent)

 

Nikolaas.Vanderheyden@ugent.be