Chiral enhancement of two-magnon bound states in an $S=1/2$ triangular-lattice magnet

László Rudner, Karlo Penc

We study one- and two-magnon excitations above the fully polarized state of the spin-$1/2$ triangular-lattice $J_1$-$J_2$-$J_3$ Heisenberg model with a uniform scalar-chirality int…