Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-01-04
Phys.Rev.D59:126002,1999
Physics
High Energy Physics
High Energy Physics - Theory
Latex (3 times), 23 pages
Scientific paper
10.1103/PhysRevD.59.126002
We show that the minimally coupled massless scalar wave equation in the background of an six-dimensional extremal dyonic string (or D1-D5 brane intersection) is exactly solvable, in terms of Mathieu functions. Using this fact, we calculate absorption probabilities for these scalar waves, and present the explicit results for the first few low energy corrections to the leading-order expressions. For a specific tuning of the dyonic charges one can reach a domain where the low energy absorption probability goes to zero with inverse powers of the logarithm of the energy. This is a dividing domain between the regime where the low energy absorption probability approaches zero with positive powers of energy and the regime where the probability is an oscillatory function of the logarithm of the energy. By the conjectured AdS/CFT correspondence, these results shed novel light on the strongly coupled two-dimensional field theory away from its infrared conformally invariant fixed point (the strongly coupled ``non-critical'' string).
Cvetic Mirjam
Lu Hai
Pope Christopher N.
Tran Tuan A.
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