| Themes > Science > Physics > Elementary particle physics > Elementary particle physics Today > Branes > Super-membranes |
A brane is a hyperdimensional membrane - just as a string is a hyperdimensional line. It is a dimentional boundary layer of sorts. The term "brane" is a play on ``membrane''. Branes are defined by the number of dimensions. A two-dimensional surface is a two-brane (D2-brane). Three-dimensional space, such as the known physical universe is a three-brane (D3-brane) moving through time. "D" stands for dimension. So a D5-brane is a five dimensional hyper-surface which propagates in time, thus being a six dimensional space-time structure. |
|
|