Spin chains and classical strings in two parameters $q$-deformed AdS${}_3\times$S${}^3$

Abstract

In this paper, we study the spin chain and string excitation in the two-parameters $q$-deformed AdS${}_3\times$S${}^3$ proposed by Hoare. We obtain the deformed spin chain model at the fast spin limit for choices of deformed parameters. General ansatz for giant magnons are studied in great detail and complicated dispersion relation is treated perturbatively. We also study several types of hanging string solutions and their charges and spins are analyzed numerically. At last, we explore its pp-wave limit and find its solution only depends on the difference of deformed parameters.

arXiv comment21 pages, 4 figures

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• Double Yang-Baxter deformation of spinning strings
• An integrable deformed Landau-Lifshitz model with particle production?
• Pulsating string solution and stability in two parameter $\chi$-deformed background