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17 papers · 2 filters
The Structure of D2-Branes in the Presence of an RR field
D. K. Park, S. Tamaryan, H. J. W. Müller-Kirsten
A Born--Infeld theory describing a --brane coupled to a 3--form RR potential is reconsidered and a new type of static solution is obtained which is even stable.
Tunneling of Born-Infeld Strings to D2-Branes
D. K. Park, S. Tamaryan, Y. -G. Miao +1
A Born-Infeld theory describing a D2-brane coupled to a 4-form RR field strength is considered, and the general solutions of the static and Euclidean time equations are derived and…
Gravitational dressing of D-instantons
Sergei V. Ketov
The non-perturbative corrections to the universal hypermultiplet moduli space metric in the type-IIA superstring compactification on a Calabi-Yau threefold are investigated in the…
Exact renormalization flow and domain walls from holography
Sergei V. Ketov
The holographic correspondence between 2d, N=2 quantum field theories and classical 4d, N=2 supergravity coupled to hypermultiplet matter is proposed. The geometrical constraints o…
Partial non-renormalisation of the stress-tensor four-point function in N=4 SYM and AdS/CFT
Burkhard Eden, Anastasios Petkou, Christian Schubert +1
We show that, although the correlator of four stress-tensor multiplets in N=4 SYM is known to have radiative corrections, certain linear combinations of its components are protecte…
Universality or Non--Universality of Absorption Cross Sections for Extended Objects
D. K. Park, H. J. W. Müller-Kirsten
The calculation of absorption cross sections for minimal scalars in supergravity backgrounds is an important aspect of the investigation of AdS/CFT correspondence and requires a ma…