Front Cover: Tank‐Circuit Assisted Coupling Method for Sympathetic Laser Cooling (Adv. Quantum Technol. 7/2021)

In article number 2100029, Bingsheng Tu and co-workers present a novel scheme that allows to efficiently cool arbitrary ions by coupling them directly laser cooled ion in separate Penning trap. The authors' results demonstrate how common tank circuit can drastically enhance the coupling, resulting expected avoided-crossing behavior of two ions. This technique holds promise enable millikelvin cooling traps.