Brane
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. For example, a point particle can be viewed as a brane of dimension zero, while a string can be viewed as a brane of dimension one. It is also possible to consider higher-dimensional branes. In dimension p, these are called p-branes. The word brane comes from the word "membrane" which refers to a two-dimensional brane.
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. A p-brane sweeps out a (p+1)-dimensional volume in spacetime called its worldvolume. Physicists often study fields analogous to the electromagnetic field, which live on the worldvolume of a brane.
In string theory, D-branes are an important class of branes that arise when one considers open strings. As an open string propagates through spacetime, its endpoints are required to lie on a D-brane. The letter "D" in D-brane refers to a certain mathematical condition on the system known as the Dirichlet boundary condition. The study of D-branes in string theory has led to important results such as the AdS/CFT correspondence, which has shed light on many problems in quantum field theory.
Bârza
Bârza is a commune in Olt County, Romania. It is composed of two villages, Bârza and Braneț.
References
Coordinates: 44°20′N 24°47′E / 44.333°N 24.783°E / 44.333; 24.783
Brane (disambiguation)
A brane is a spatially extended mathematical concept that appears in M-theory. It may also refer to:
See also
Podcasts:
Brane
ALBUMS
- The Artificial Picture released: 2007
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If All The Raindrops
by: Barney'Barney]
If all the raindrops were lemon drops and gum drops
Oh what a rain that will be
Standing outside with my mouth opened wide
[all]
aa aa aa aa aa aa aa aa aa aa
If all the raindrops were lemon drops and gum drops
Oh what a rain that will be
If all the snowflakes were candy bars and milkshakes
Oh what a snow that will be
Standing outside with my mouth opened wide
aa aa aa aa aa aa aa aa aa aa
If all the snowflakes were candy bars and milkshakes
Oh what a snow that will be
If all the sun beamss were bubble gum and ice cream
Oh what a sun that will be
Standing outside with my mouth opened wide
aa aa aa aa aa aa aa aa aa aa
If all the sun things were bubble gum and ice cream
Oh what a sun that will be.