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

Jul, 1999
34 pages
Published in:
  • Nucl.Phys.B 564 (2000) 103-127
e-Print:
Report number:
  • TIFR-TH-99-34,
  • IC-99-79

Citations per year

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Abstract:
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)(Q1,Q5)+(Q1,Q5)(Q_1,Q_5)\to (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.
Note:
  • 34 pages, latex, no figures
  • field theory: conformal
  • dimension: 2
  • supersymmetry
  • supergravity
  • moduli space
  • orbifold
  • sigma model
  • group theory: representation
  • gauge field theory: SU(N)
  • radiation: Hawking