Quantum Sine(h)-Gordon Model and Classical Integrable Equations

Details Quantum Sine(h)-Gordon Model and Classical Integrable Equations Quantum Sine(h)-Gordon Model and Classical Integrable Equations

2010-03-28

arxiv.org/abs/1003.5333v1

Physics

Mathematical Physics

35 pages, 3 figures

Scientific paper

We study a family of classical solutions of modified sinh-Gordon equation, $\partial_z\partial_{{\bar z}} \eta-\re^{2\eta}+p(z)\,p({\bar z})\ \re^{-2\eta}=0$ with $p(z)=z^{2\alpha}-s^{2\alpha}$. We show that certain connection coefficients for solutions of the associated linear problem coincide with the $Q$-function of the quantum sine-Gordon $(\alpha>0)$ or sinh-Gordon $(\alpha<-1)$ models.

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