D1 / D5 moduli in SCFT and gauge theory, and Hawking radiation

David, Justin R. ; Mandal, Gautam ; Wadia, Spenta R. (2000) D1 / D5 moduli in SCFT and gauge theory, and Hawking radiation Nuclear Physics B, 564 (1-2). pp. 103-127. ISSN 0550-3213

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Official URL: http://doi.org/10.1016/S0550-3213(99)00620-3

Related URL: http://dx.doi.org/10.1016/S0550-3213(99)00620-3


We construct marginal operators of the orbifold SCFT corresponding to all twenty near-horizon moduli in supergravity, including operators involving twist fields which correspond to the blowing up modes. We identify the operators with the supergravity moduli in a 1–1 fashion by inventing a global SO(4) algebra in the SCFT. We analyze the gauge dynamics of the D1/D5 system relevant to the splitting (Q1,Q5)→(Q′1,Q′5)+(Q′′1,Q′′5) with the help of a linear sigma model. We show in supergravity as well as in SCFT that the absorption cross-section for minimal scalars is the same all over the near-horizon moduli space.

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