The Official String Theory Web Site:--> Theatre :--> String Colloquium 5
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The Basic Idea of Superstring Theory


. Elementary particles are not mathematical points, as in conventional quantum theory. Rather, they are one-dimensional loops.
A moving closed string
. The characteristic length and mass can be constructed from the fundamental constants observed in Nature: h, G and c.

Planck length     Lp = (h G/c3)1/2   =  1.6 x 10-33 cm
Planck mass     Mp = (h c/G)1/2   =  2.2 x 10-8 kg
. At energies << Mp c2, strings are well approximated by points, which is why quantum field theory is so successful.


The Second Superstring Revolution // String Theory: a multihistory


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