Ions in radio-frequency traps are widely used in various fields of applied and fundamental physics, such as metrology and quantum computing. One of the important tasks required for modern experiments is deep cooling of ion crystals. The results of simulations of an increase in the efficiency of deep cooling of linear ion crystals by the method of electromagnetically induced transparency (EIT cooling) by imposing an optical lattice on the radio-frequency trap have been reported. It has been shown that this method makes it possible to narrow the frequency range occupied by various vibrational modes of ions and to increase their axial frequencies of motion without violating the linear configuration of the crystal. Thus, for a crystal of eight ions in a Paul trap with secular frequencies ω_z = 2π × 100 kHz and ω_r = 2π × 650 kHz, the application of an optical lattice allows the reduction of the frequency range occupied by vibrational modes by a factor of 2. The dependence of the optimal power of the optical lattice for narrowing the vibrational spectrum on the number of particles in the trap and its parameters has been investigated.

射频陷波器中的离子广泛应用于应用物理和基础物理学的各个领域，例如计量学和量子计算。现代实验所需的重要任务之一是离子晶体的深度冷却。已经报道了通过在高频阱上设置光学晶格以电磁感应的透明性（EIT冷却）方法提高线性离子晶体深冷效率的模拟结果。业已表明，该方法可以缩小离子的各种振动模式所占据的频率范围，并增加其轴向运动频率，而不会破坏晶体的线性构型。因此，对于8根离子在Paul阱的与晶体特征频率ω _ž = 2π ×100千赫和ω _{- [R} = 2 π ×650千赫，光学晶格的应用允许的频率范围内的减小占用由振动模式通过的2倍为缩小光学格子的最佳功率的依赖性对捕集阱中颗粒数目及其参数的振动光谱进行了研究。