On Noncommutative Open String Theories

Details On Noncommutative Open String Theories On Noncommutative Open String Theories

2000-06-26

arxiv.org/abs/hep-th/0006202v3

JHEP 0007:052,2000

Physics

High Energy Physics

High Energy Physics - Theory

latex, 22pages, one eps figure, v3: minor changes and corrections

Scientific paper

10.1088/1126-6708/2000/07/052

We investigate new compactifications of OM theory giving rise to a 3+1 dimensional open string theory with noncommutative $x^0$-$x^1$ and $x^2$-$x^3$ coordinates. The theory can be directly obtained by starting with a D3 brane with parallel (near critical) electric and magnetic field components, in the presence of a RR scalar field. The magnetic parameter permits to interpolate continuously between the $x^0$-$x^1$ noncommutative open string theory and the $x^2$-$x^3$ spatial noncommutative U(N) super Yang-Mills theory. We discuss $SL(2,Z)$ transformations of this theory. Using the supergravity description of the large $N$ limit, we also compute corrections to the quark-antiquark Coulomb potential arising in the NCOS theory.

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