Isometry of AdS2 And The c=1 Matrix Model

Details Isometry of AdS2 And The c=1 Matrix Model Isometry of AdS2 And The c=1 Matrix Model

2004-01-23

arxiv.org/abs/hep-th/0401167v1

JHEP 0405 (2004) 008

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 6 figures

Scientific paper

10.1088/1126-6708/2004/05/008

Implications of the SL(2,R) symmetry of the c = 1 matrix models are explored. Based on the work of de Alfaro, Fubini and Furlan, we note that when the Fermi sea is drained, the matrix model for 2 dimensional string theory in the linear dilaton background is equivalent to the matrix model of AdS_2 recently proposed by Strominger, for which SL(2,R) is an isometry. Utilizing its Lie algebra, we find that a topological property of AdS_2 is responsible for quantizing D0-brane charges in type 0A theory. We also show that the matrix model faithfully reflects the relation between the Poincare patch and global coordinates of AdS_2.

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