This theoretical study delves into the induction of torque by light beams carrying orbital angular momentum on single-molecule magnets (SMMs). The investigation explores the impact of decay rates, detunings, and control field intensities on the generation of light-induced torque and the resulting current flow in a ring formation. The results highlight the crucial role of the control field, showcasing its efficacy as a tool to manipulate and amplify torque at different frequencies. Detuning is identified as a critical parameter influencing the shift, slope, and emergence of multiple peaks in the torque profile. The interplay between detuning, control field intensity, and decay rates introduces a control mechanism for fine-tuning torque at distinct probe frequencies. These findings underscore the potential applications of the control field and detuning as robust tools for tailored manipulation of torque in SMMs, paving the way for advancements in controlled current flow dynamics with ring structures.

中文翻译：

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通过拉盖尔高斯光束在分子磁体上感应扭矩

这项理论研究深入研究了单分子磁体 (SMM) 上携带轨道角动量的光束所产生的扭矩。该研究探讨了衰减率、失谐和控制场强度对光感扭矩的产生以及环结构中产生的电流的影响。结果凸显了控制场的关键作用，展示了其作为在不同频率下操纵和放大扭矩的工具的功效。失谐被认为是影响扭矩曲线中的偏移、斜率和多个峰值出现的关键参数。失谐、控制场强度和衰减率之间的相互作用引入了一种用于在不同探头频率下微调扭矩的控制机制。这些发现强调了控制领域和失谐作为 SMM 中定制扭矩操纵的强大工具的潜在应用，为环形结构受控电流动力学的进步铺平了道路。