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cond-mat.str-el2006★ 28 cited
Mapping of Coulomb gases and sine-Gordon models to statistics of random surfaces
Adilet Imambekov, Vladimir Gritsev, Eugene Demler
We introduce a new class of sine-Gordon models, for which interaction term is present in a region different from the domain over which quadratic part is defined. We develop a novel…
cond-mat.str-el2003
Phase Diagram of the Heisenberg Spin Ladder with Ring Exchange
V. Gritsev, B. Normand, D. Baeriswyl
We investigate the phase diagram of a generalized spin-1/2 quantum antiferromagnet on a ladder with rung, leg, diagonal, and ring-exchange interactions. We consider the exactly sol…