Intrinsic optical bistability in a strongly driven Rydberg ensemble
Intrinsic optical bistability in a strongly driven Rydberg ensemble
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DOI：
10.1103/physreva.93.063863
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发表时间：
2016-06-30
影响因子：
2.9
通讯作者：
Weatherill, Kevin J.
中科院分区：
文献类型：
--
作者：
de Melo, Natalia R.;Wade, Christopher G.;Weatherill, Kevin J.
我们观察和表征内禀光学双稳态在稀里德伯蒸汽。的双稳态的特征在于由低和高里德堡占有率与跳跃向上和向下的位置显示滞后的方向，其中控制参数被改变的状态之间的急剧跳跃。我们发现跳跃点的频率偏移与主量子数的四次方成比例。此外，滞后窗口的宽度随着主量子数的增加而增加，在达到峰值之前，然后再次关闭。实验结果与基于半经典Maxwell-Bloch方程的简单理论模型的预测一致，该模型包括相互作用引起的加宽和能级位移的影响。这些结果提供了深入了解驱动耗散系统的动力学。
We observe and characterize intrinsic optical bistability in a dilute Rydberg vapor. The bistability is characterized by sharp jumps between states of low and high Rydberg occupancy with jump-up and -down positions displaying hysteresis depending on the direction in which the control parameter is changed. We find that the shift in frequency of the jump point scales with the fourth power of the principal quantum number. Also, the width of the hysteresis window increases with increasing principal quantum number, before reaching a peak and then closing again. The experimental results are consistent with predictions from a simple theoretical model based on semiclassical Maxwell-Bloch equations including the effects of interaction-induced broadening and level shifts. These results provide insight into the dynamics of driven dissipative systems.