论文标题
在RABI模型中，Bloch-Siegert振荡具有振幅调节的驾驶场
Bloch-Siegert oscillations in the Rabi model with an amplitude-modulated driving field
论文作者
论文摘要
当低频调制场的频率与高频场中的狂犬病频率匹配时，我们研究了在兔共振下通过振幅调节电磁场激发的量子的连贯动力学。由于在量子和低频驾驶场之间的超晶体耦合处多个光子过程的破坏性干扰，因此，Rabi振荡仅来自Bloch-Siegert效应。在时间分辨相干动力学中直接观察到它是Bloch-Siegert振荡。在这种情况下，连贯响应的傅立叶光谱中的三重态被转化为双线，而线之间的分裂等于Bloch-Siegert偏移的两倍。在钻石的氮空位中心实验的条件下，证明了这些不寻常的特性。
We study the coherent dynamics of a qubit excited by an amplitude-modulated electromagnetic field under the Rabi resonance when the frequency of the low-frequency modulation field matches the Rabi frequency in the high-frequency field. Due to destructive interference of multiple photon processes at the ultrastrong coupling between the qubit and the low-frequency driving field, Rabi oscillations result exclusively from the Bloch-Siegert effect. It is directly observed in the time-resolved coherent dynamics as the Bloch-Siegert oscillation. In this case, triplets in Fourier spectra of the coherent response are transformed into doublets with the splitting between the lines equal to twice the Bloch-Siegert shift. These unusual properties are demonstrated in conditions of experiments with a nitrogen vacancy center in diamond.
