Dynamic population of multiexcitation subradiant states in incoherently excited atomic arrays
Dynamic population of multiexcitation subradiant states in incoherently excited atomic arrays
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DOI：
10.1103/physreva.107.l051701
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发表时间：
2022-08
影响因子：
2.9
通讯作者：
Oriol Rubies-Bigorda;S. Ostermann;S. Yelin
中科院分区：
文献类型：
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作者：
Oriol Rubies-Bigorda;S. Ostermann;S. Yelin
多激发次辐射态的确定性产生被证明是具有挑战性的。在这里，我们提出了一个可行的途径，对他们的瞬态产生在有限大小的有序阵列偶极偶极耦合量子发射器，基于非相干驱动的原子系综。特别是，我们表明，最大的耦合到长寿命的次辐射态实现，如果只有一半的原子最初被激发。我们通过计算发射光的动态荧光光谱来表征所产生的状态的性质。最后，我们阐明了足够密集的原子阵列的衰变过程中的相干相互作用的作用，这导致在相干驱动的辐射爆发，导致随后减少的机会，准备多激发次辐射态。
The deterministic generation of multiexcitation subradiant states proves to be challenging. Here, we present a viable path towards their transient generation in finite-sized ordered arrays of dipole-dipole coupled quantum emitters, based on incoherent driving of the atomic ensemble. In particular, we show that a maximal coupling to long-lived subradiant states is achieved if only half of the atoms are initially excited. We characterize the nature of the resulting states by calculating the dynamic fluorescence spectrum of the emitted light. Finally, we elucidate the role of coherent interactions during the decay process of sufficiently dense atomic arrays, which result in a coherently driven radiation burst that leads to a subsequent reduction of the chances to prepare multiexcitation subradiant states.