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- Romuald A. Janik
- 2008

An S-matrix satisying the Yang-Baxter equation with symmetries relevant to the AdS5 Ã— S5 superstring has recently been determined up to an unknown scalar factor. Such scalar factors are typically fixed using crossing relations, however due to the lack of conventional relativistic invariance, in this case its determination remained an open problem. In thisâ€¦ (More)

We study the dynamics of strongly interacting gauge-theory matter (modelling quark-gluon plasma) in a boost-invariant setting using the AdS/CFT correspondence. Using Fefferman-Graham coordinates and with the help of holographic renormalization, we show that perfect fluid hydrodynamics emerges at large times as the unique nonsingular asymptotic solution ofâ€¦ (More)

We derive generalized LÃ¼scher formulas for finite size corrections in a theory with a general dispersion relation. For the AdS5 Ã— S5 superstring these formulas encode leading wrapping interaction effects. We apply the generalized Î¼-term formula to calculate finite size corrections to the dispersion relation of the giant magnon at strong coupling. The resultâ€¦ (More)

- Romuald A. Janik
- Physical review letters
- 2007

We analyze the anti-de Sitter/conformal-field-theory dual geometry of an expanding boost-invariant plasma. We show that the requirement of nonsingularity of the dual geometry for leading and subasymptotic times predicts, without any further assumptions about gauge theory dynamics, hydrodynamic expansion of the plasma with viscosity coefficient exactlyâ€¦ (More)

We consider the exact superpotential of N = 1 super Yang-Mills theory with gauge group SO(N) and arbitrary tree-level polynomial superpotential of one adjoint Higgs field. A field-theoretic derivation of the glueball superpotential is given, based on factorization of the N = 2 Seiberg-Witten curve. Following the conjecture of Dijkgraaf and Vafa, the resultâ€¦ (More)

- Niklas Beisert, Changrim Ahn, +23 authors Konstantinos Zoubos
- 2011

This is the introductory chapter of a review collection on integrability in the context of the AdS/CFT correspondence. In the collection we present an overview of the achievements and the status of this subject as of the year 2010. ar X iv :1 01 2. 39 82 v3 [ he pth ] 1 2 Ja n 20 11 Addresses: 1 Max-Planck-Institut fÃ¼r Gravitationsphysik,â€¦ (More)

We derive the equation for the quasi-normal modes corresponding to the scalar excitation of a black hole moving away in the fifth dimension. This geometry is the AdS/CFT dual of a boost-invariant expanding perfect fluid in N = 4 SUSY Yang-Mills theory at large proper-time. On the gauge side, the dominant solution of the equation describes the decay back toâ€¦ (More)

Assuming that the world-sheet sigma-model in the AdS/CFT correspondence is an integrable quantum field theory, we deduce that there might be new corrections to the spin-chain/string Bethe ansatz paradigm. These come from virtual particles propagating around the circumference of the cylinder and render Bethe ansatz quantization conditions only approximate.â€¦ (More)

The anomalous dimensions of twist two operators have to satisfy certain consistency requirements derived from BFKL. For N = 4 SYM it was shown that at four loops, the anomalous dimensions derived from the all-loop asymptotic Bethe ansatz do not pass this test. In this paper we obtain the remaining wrapping part of these anomalous dimensions from stringâ€¦ (More)

- Romuald A. Janik
- 2002

We extract from gauge theoretical calculations the matrix elements of the SYM dilatation operator. By the BMN correspondence this should coincide with the 3-string vertex of light cone string field theory in the pp-wave background. We find a mild but important discrepancy with the SFT results. If the modified O(g2) matrix elements are used, the O(g2 2)â€¦ (More)