In physics, M(atrix) theory (also known as BFSS-Matrix theory) is a fundamental formulation of M-theory as a Random matrix model. It is written in terms of interacting D0-branes (zero-dimensional Dirichlet branes) in infinite momentum frame. It was proposed by Banks, Fischler, Shenker, and Susskind in 1996. See also the discussion in M-theory.
Matrix String Theory
Matrix string theory is a set of equations that describe superstring theory in a non-perturbative framework. Matrix string theory is related to M(atrix) theory in the same sense that superstring theory is related to M-theory. Type IIA string theory can be shown to be equivalent to a maximally supersymmetric two-dimensional gauge theory, the gauge group of which is U(N) for a large value of N. This Matrix string theory was first proposed by Lubos Motl in 1997 and later independently in a more complete paper by Robbert Dijkgraaf, Erik Verlinde, and Herman Verlinde. Another matrix string theory equivalent to Type IIB string theory was constructed in 1996 by Ishibashi, Kawai, Kitazawa and Tsuchiya. This version is known as the IKKT matrix model.
— Wikipedia on Matrix string theory
2010.07.23 Friday ACHK