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Integrability for the Full Spectrum of Planar AdS/CFT
Nikolay GromovPNPI/DESY/HU
V.Kazakov and P.Vieira
Motivation
Spectrum of an interacting field theory is a funny problem by itself
Some quantities are shared with realistic QCD
We can test string/gauge duality
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2) Get eigenvalues
1) Solve polynomial equation
YM: One-loop
- Integrable Hamiltonian
LepatovFaddeev, KorchemskyMinahan , Zarembo
(type IIB super) string theory in AdS5xS5 x
is dual to a 4 dimensional conformal field theory (N=4 SYM)
Local operators String states
Maldacena
AdS/CFT Duality
Anomalous dimensions Spectrum
Vacuum
I.e. from the asymptotical spectrum (R=\infty) we can compute the Ground state energy for ANY finite volume!
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S-matrix
Obeys Yang-Baxter:
Then (see lectures of Faddeev hep-th/9605187 ):
SU(2|2) invariant tensor with 4 fundamental indeses
The eigevalues solves hirota!
Konishi operator
For weak coupling constant:
The simplest operator
In agreement with perturbation theory!!4-loops!
Kotikov, Lipatov, Rej, Staudacher and VelizhaninSieg, TorrielliJanik, Bojnok, N.G., Kazakov, Vieira
Conclusions
We can go below BAE nowIntegrability allows to predict
very complicated perturbative calculations
It is possible to compute some quantities for arbitrary coupling
QCD BFKL could be checked