论文标题
控制惯性和耗散列液晶中的自发发射：临界现象的作用
Controlling spontaneous emission in inertial and dissipative nematic liquid crystals: the role of critical phenomena
论文作者
论文摘要
我们开发了一种严格的现场理论方法来研究惯性和耗散列液晶中自发发射的研究，并披露了大规模Stueckelberg仪表理论的替代应用，以描述这些系统中的关键现象。这种方法不仅允许人们在液晶中自发发射中的作用，而且还可以对现实的nematics中量子排放的定量预测，这些量子在现实的nematics中对当前的科学和技术兴趣在超材料领域中进行了定量预测。具体而言，我们预测，对于惯性和耗散病例，都可以通过改变晶体到纽的相变的温度来打开和关闭液晶中的量子发射。我们还从第一原理中预测了表征这种过渡的关键指数的价值，我们不仅表明它独立于惯性或耗散动力学，而且还与实验保持了良好的一致性。我们确定发射极偶极力矩相对于固定导演的偶极力矩的方向，该列表抑制了自发发射，为实现发射辐射的方向性铺平了道路，这一结果可以应用于可调光子设备，例如metasurface，例如Metasurface和可调的光源。
We develop a rigorous, field-theoretical approach to the study of spontaneous emission in inertial and dissipative nematic liquid crystals, disclosing an alternative application of the massive Stueckelberg gauge theory to describe critical phenomena in these systems. This approach allows one not only to unveil the role of phase transitions in the spontaneous emission in liquid crystals but also to make quantitative predictions for quantum emission in realistic nematics of current scientific and technological interest in the field of metamaterials. Specifically, we predict that one can switch on and off quantum emission in liquid crystals by varying the temperature in the vicinities of the crystalline-to-nematic phase transition, for both the inertial and dissipative cases. We also predict from first principles the value of the critical exponent that characterizes such a transition, which we show not only to be independent of the inertial or dissipative dynamics, but also to be in good agreement with experiments. We determine the orientation of the dipole moment of the emitter relative to the nematic director that inhibits spontaneous emission, paving the way to achieve directionality of the emitted radiation, a result that could be applied in tuneable photonic devices such as metasurfaces and tuneable light sources.
