Sunday, 24 December 2017

spacetime dimensions - String theory: why not use $n$-dimensional blocks/objects/branes?


I have a basic question: if we use 1d string to replace 0d particle to gain insight of nature in string theory, and advanced to use 2d membranes, can we imagine that using $3$- or $n$-dimensional blocks/objects/branes as basic units in physics theory? Where is the end of this expansion?




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