Type IIA Supergravity Excitations in Plane-Wave Background

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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Details

latex2e, 27 pages, 2 tables, v3: final version to appear in PRD

Scientific paper

10.1103/PhysRevD.68.046007

We study the low-lying excitations of Type IIA superstring theory in a plane wave background with 24 supersymmetries. In the light-cone gauge, the superstring action has ${\cal N}=(4,4)$ supersymmetry and is exactly solvable, since it is quadratic in superstring coordinates. We obtain explicitly the spectrum of the Type IIA supergravity fluctuation modes in the plane wave background and give its correspondence with the spectrum of string states from the zero-mode sector of the light-cone superstring Hamiltonian.

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