Holographic Krylov complexity for Yang-Baxter deformed supergravity backgrounds

Abstract: We compute the holographic Krylov complexity for a class of strongly coupled QFTs in a top down approach, where the dual gravitational counterpart corresponds to Yang-Baxter (YB) deformed supergravity solutions in a type IIB set up. The full 10d solution contains the $AdS_n (n=2,3)$ as the subspace, along with the dilaton and the background RR and NS fluxes. The Krylov complexity in the dual operator picture is obtained by computing the proper momentum of the massive particle along its geodesic in the bulk spacetime. We explore the effects of YB deformation on the bulk momentum of the particle, which in turn affects the rate of growth of complexity in the dual QFTs. Our results boil down into the undeformed case in the appropriate limit of the YB parameter.