Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-07-13
JHEP 9911 (1999) 037
Physics
High Energy Physics
High Energy Physics - Theory
Harvmac, 34 pages, References added
Scientific paper
10.1088/1126-6708/1999/11/037
We discuss the relation between the Matrix theory definitions of a class of decoupled theories and their AdS/CFT description in terms of the corresponding near-horizon geometry. The near horizon geometry, naively part of the Coulomb branch, is embedded in the Higgs branch via a natural change of variables. The principles of the map apply to all DLCQ descriptions in terms of hyper-K\"ahler quotients, such as the ADHM quantum mechanics for the D1-D5 system. We then focus the (2,0) field theory, and obtain an explicit mapping from all states in the $N_0=1$ momentum sector of $N_4$ M5-branes to states in (a DLCQ version of) $AdS_7\times S^4$. We show that, even for a single D0-brane, the space-time coordinates become non-commuting variables, suggesting an inherent non-commutativity of space-time in the presence of field strengths even for theories with gravity.
Berkooz Micha
Verlinde Herman
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