2010

Quantum integrability and functional equations

Volin, Dmytro

Understand

In this thesis a general procedure to represent the integral Bethe Ansatz equations in the form of the Reimann-Hilbert problem is given.

  • This allows us to study in simple way integrable spin chains in the thermodynamic limit.
  • Based on the functional equations we give the procedure that allows finding the subleading orders in the solution of various integral equations solved to the leading order by the Wiener-Hopf technics.
  • The integral equations are studied in the context of the AdS/CFT correspondence, where their solution allows verification of the integrability conjecture up to two loops of the strong coupling expansion.

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