Exactly Solvable Model of Superstring in Plane-wave Background with Linear Null Dilaton

Details Exactly Solvable Model of Superstring in Plane-wave Background with Linear Null Dilaton Exactly Solvable Model of Superstring in Plane-wave Background with Linear Null Dilaton

2005-09-15

arxiv.org/abs/hep-th/0509113v3

Nucl.Phys.B741:269-296,2006

Physics

High Energy Physics

High Energy Physics - Theory

35 pages, Latex; Acknowledgement added; Published version

Scientific paper

10.1016/j.nuclphysb.2006.02.019

In this paper, we study an exactly solvable model of IIB superstring in a time-dependent plane-wave backgound with a constant self-dual Ramond-Ramond 5-form field strength and a linear dilaton in the light-like direction. This background keeps sixteen supersymmetries. In the light-cone gauge, the action is described by the two-dimensional free bosons and fermions with time-dependent masses. The model could be canonically quantized and its Hamiltonian is time-dependent with vanishing zero point energy. The spectrum of the excitations is symmetric between the bosonic and fermionic sector. The string mode creation turns out to be very small.

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