Concept

Brane

Summary
In string theory and related theories such as supergravity theories, a brane is a physical object that generalizes the notion of a point particle to higher dimensions. Branes are dynamical objects which can propagate through spacetime according to the rules of quantum mechanics. They have mass and can have other attributes such as charge. Mathematically, branes can be represented within , and are studied in pure mathematics for insight into homological mirror symmetry and noncommutative geometry. p-branes A point particle can be viewed as a brane of dimension zero, while a string can be viewed as a brane of dimension one. In addition to point particles and strings, it is possible to consider higher-dimensional branes. A p-dimensional brane is generally called "p-brane". The term "p-brane" was coined by M. J. Duff et al. in 1988; "brane" comes from the word "membrane" which refers to a two-dimensional brane. A p-brane sweeps out a (p+1)-dimensional volume in spacetime ca
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