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The D1/D5 System And Singular CFT

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arxiv hep-th/9903224 v3 pith:NEVY7VDG submitted 1999-03-25 hep-th

classification hep-th
keywords conformalfieldspacesystemtheorycontinuummodulispectrum
verification ladder T0 review T1 audit T2 compute T3 formal
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We study the conformal field theory of the D1/D5 system compactified on X (X is T^4 or K3). It is described by a sigma model whose target space is the moduli space of instantons on X. For values of the parameters where the branes can separate, the spectrum of dimensions in the conformal field theory exhibits a continuum above a gap. This continuum leads to a pathology of the conformal field theory, which explains a variety of problems in various systems. In particular, we explain the apparent discrepancy between different methods of finding the spectrum of chiral fields at certain points in the moduli space of the system.

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Cited by 13 Pith papers

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