Nonlinear Sciences – Exactly Solvable and Integrable Systems
Scientific paper
2007-12-06
Zap.Nauchn.Semin. POMI 347 (2007) 75-87; J.Math.Sciences 151 (2008) 2840-2847 (Engl. transl.)
Nonlinear Sciences
Exactly Solvable and Integrable Systems
LaTex, 9 pages, 1 figure
Scientific paper
10.1007/s10958-008-9004-8
The Bethe equations, arising in description of the spectrum of the dilatation operator for the su(2) sector of the N=4 supersymmetric Yang-Mills theory, are considered in the anti-ferromagnetic regime. These equations are deformation of those for the Heisenberg XXX magnet. It is proven that in the thermodynamic limit roots of the deformed equations group into strings. It is proven that the corresponding Yang's action is convex, which implies uniqueness of solution for centers of the strings. The state formed of strings of length (2n+1) is considered and the density of their distribution is found. It is shown that the energy of such a state decreases as n grows. It is observed that non-analyticity of the left hand side of the Bethe equations leads to an additional contribution to the density and energy of strings of even length. Whence it is concluded that the structure of the anti-ferromagnetic vacuum is determined by the behaviour of exponential corrections to string solutions in the thermodynamic limit and possibly involves strings of length 2.
Bytsko Andrei G.
Shenderovich I. E.
No associations
LandOfFree
On string solutions of Bethe equations in N=4 supersymmetric Yang-Mills theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On string solutions of Bethe equations in N=4 supersymmetric Yang-Mills theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On string solutions of Bethe equations in N=4 supersymmetric Yang-Mills theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-91973