Single plasmon router with two quantum dots side coupled to two plasmonic waveguides with a junction. - Nam-Chol Kim; Myong-Chol Ko; Ju-Song Ryom; Hyok Choe; Il-Hyang Choe; Su-Ryon Ri; Song-Gun Kim (Quantum Inf. Process., 2021)

Entanglement of two quantum dots with dipole-dipole interaction coupled to a cavity in plasmonic waveguide system. - Ju-Song Ryom; Gang-Yong Ri; Nam-Chol Kim; Myong-Chol Ko; Su-Ryon Ri; Song-Il Choe (Quantum Inf. Process., 2023)

Single-qubit phase gates with two quantum dots embedded in T-type plasmonic waveguide. - Cholmin Kim; Nam-Chol Kim; Myong-Chol Ko; Ju-Song Ryom; Su-Ryon Ri; Jong-Ju Ri (Quantum Inf. Process., 2024)

Weighted quantum genetic algorithm for one-dimensional bin packing problem. - Thae-Gyong Han; Nam-Chol Kim; Myong-Chol Ko; Ju-Song Ryom; Su-Ryon Ri (Quantum Inf. Process., 2025)