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Boundary RG Flow Associated with the AKNS Soliton Hierarchy

Abstract : We introduce and study an integrable boundary flow possessing an infinite number of conserving charges which can be thought of as quantum counterparts of the Ablowitz, Kaup, Newell and Segur Hamiltonians. We propose an exact expression for overlap amplitudes of the boundary state with all primary states in terms of solutions of certain ordinary linear differential equation. The boundary flow is terminated at a nontrivial infrared fixed point. We identify a form of whole boundary state corresponding to this fixed point.
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Submitted on : Wednesday, March 1, 2006 - 4:14:13 PM
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V.A. Fateev, S.L. Lukyanov. Boundary RG Flow Associated with the AKNS Soliton Hierarchy. Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2005, 39, pp.12889-12925. ⟨10.1088/0305-4470/39/41/S10⟩. ⟨in2p3-00025706⟩



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