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Supersymmetrische Stringtheorie
{{string-theory}}
{{see|string theory}}

'''Superstring theory''' is an attempt to explain all of the [[Elementary particle|particles]] and [[fundamental force]]s of nature in one theory by modeling them as vibrations of tiny [[supersymmetry|supersymmetric]] strings. It is considered one of the most promising candidate theories of [[quantum gravity]]. Superstring theory is a shorthand for '''supersymmetric string theory''' because unlike [[bosonic (contracted; show full)
Our [[physical space]] is observed to have only three large [[dimension]]s &mdash; and taken together with time as the fourth dimension &mdash; a physical theory must take this into account. However, nothing prevents a theory from including more than 4 dimensions, per se. In the case of [[string theory]], [[consistency]] requires [[spacetime]] to have 10, 11 or 26 dimensions. The conflict between observation and theory is resolved by making the unobserved dimensions [[
cCompact dimensionification (physics)|compactified]].

Our minds have difficulty visualizing higher dimensions because we can only move in three spatial dimensions.  One way of dealing with this limitation is not to try to visualize higher dimensions at all, but just to think of them as extra numbers in the equations that describe the way the world works. This opens the question of whether these 'extra numbers' can be investigated directly in any experiment (which must show different results in 1, 2, or 2+1 dimensions to a human scie(contracted; show full)[[it:Teoria delle superstringhe]]
[[ja:超弦理論]]
[[pl:Teoria superstrun]]
[[ru:Теория суперструн]]
[[sl:Teorija superstrun]]
[[sv:Supersträngteori]]
[[fi:Supersäieteoria]]
[[zh:超弦理論]]