用电磁局域态密度涨落探测结构相变
Fluctuations of the Electromagnetic Local Density of States as a Probe for Structural Phase Switching
摘要：
研究了单量子发射体在散射介质中发生相变时荧光衰减率的统计特性。在某些情况下，散射介质的结构特性探索系统在两个不同相位之间动态切换的状态。虽然在该制度的两个阶段的光散射特性是很难区分的，我们表明，具有低扩散率的单发射器的寿命统计显然是依赖于介质的动态演变。因此，寿命统计在光散射不存在的系统中提供了相位切换的清晰特征。
英文摘要：
We study the statistics of the fluorescence decay rates for single quantum emitters embedded in a scattering medium undergoing a phase transition. Under certain circumstances, the structural properties of the scattering medium explore a regime in which the system dynamically switches between two different phases. While in that regime the light scattering properties of both phases are hardly distinguishable, we demonstrate that the lifetime statistics of single emitters with low diffusivity is clearly dependent on the dynamical state in which the medium evolves. Hence, lifetime statistics provides clear signatures of phase switching in systems where light scattering does not.
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