Little string theory
Encyclopedia
In theoretical physics
, little string theory is a non-gravitational non-local theory in six spacetime
dimensions that can be obtained as an effective theory of NS5-brane
s in the limit in which gravity decouples. Little string theories exhibit T-duality
, much like the full string theory
.
Theoretical physics
Theoretical physics is a branch of physics which employs mathematical models and abstractions of physics to rationalize, explain and predict natural phenomena...
, little string theory is a non-gravitational non-local theory in six spacetime
Spacetime
In physics, spacetime is any mathematical model that combines space and time into a single continuum. Spacetime is usually interpreted with space as being three-dimensional and time playing the role of a fourth dimension that is of a different sort from the spatial dimensions...
dimensions that can be obtained as an effective theory of NS5-brane
NS5-brane
In theoretical physics, the NS5-brane is a five-dimensional object in string theory that carries a magnetic charge under the B-field, the field under which the fundamental string is electrically charged....
s in the limit in which gravity decouples. Little string theories exhibit T-duality
T-duality
T-duality is a symmetry of quantum field theories with differing classical descriptions, of which the relationship between small and large distances in various string theories is a special case. Discussion of the subject originated in a paper by T. S. Buscher and was further developed by Martin...
, much like the full string theory
String theory
String theory is an active research framework in particle physics that attempts to reconcile quantum mechanics and general relativity. It is a contender for a theory of everything , a manner of describing the known fundamental forces and matter in a mathematically complete system...
.