منابع مشابه
Semi-classical string solutions for N=1 SYM
We study semi-classically the dynamics of string solitons in the Maldacena-Nuñez background, dual in the infra-red to N=1, d = 4 SYM. For closed string configurations rotating in the S × R space wrapped by the stack of N D-branes we find a behavior that indicates the decoupling of the stringy Kaluza-Klein modes with sufficiently large SO(3) quantum numbers. We show that the spectrum of a pulsat...
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A world-sheet sigma model approach is applied to string theories dual to fourdimensional gauge theories, and semi-classical soliton solutions representing highly excited string states are identified which correspond to gauge theory operators with relatively small anomalous dimensions. The simplest class of such states are strings on the leading Regge trajectory, with large spin in AdS5. These c...
متن کاملSemi-classical open string corrections and symmetric Wilson loops
In AdS/CFT correspondence, an AdS2×S D3-brane with electric flux in AdS5× S5 spacetime corresponds to a circular Wilson loop of symmetric representation or a multiply wound one in N = 4 super Yang-Mills theory. In order to distinguish the symmetric loop and the multiply wound loop, one should see an exponentially small correction in large ’t Hooft coupling. We study semi-classically the disk op...
متن کاملClassical solutions in two-dimensional string theory and gravitational collapse.
A general solution to the D = 2 1-loop beta functions equations including tachyonic back reaction on the metric is presented. Dynamical black hole (classical) solutions representing gravitational collapse of tachyons are constructed. A discussion on the correspondence with the matrix-model approach is given. ⋆ Work supported in part by NSF grant PHY 9009850 and R. A. Welch Foundation. † e-mail:...
متن کاملClassical Solutions in String Field Theory Around the Tachyon Vacuum
In a previous paper [hep-th/0012251] we proposed a simple class of actions for string field theory around the tachyon vacuum. In this paper we search for classical solutions describing D-branes of different dimensions using the ansatz that the solutions factorize into the direct product of a matter state and a universal ghost state. We find closed form expressions for the matter state describin...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2003
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(03)00485-1