Quantum-beat lasers as bright sources of entangled sub-Poissonian light
Quantum-beat lasers as bright sources of entangled sub-Poissonian light
复制标题
DOI：
10.1103/physreva.78.045801
复制
发表时间：
2008-10
影响因子：
2.9
通讯作者：
Xiangming Hu;J. Zou
中科院分区：
文献类型：
--
作者：
Xiangming Hu;J. Zou
我们表明，量子拍频系统与非相干泵浦或相干驱动产生的纠缠子散粒噪声激光，工作在阈值以上。利用激光场的组合模式，给出了数值计算结果和物理分析。相对模式与有源介质解耦，因此保持在其真空状态，而和模式在阈值以上工作，并具有子散粒噪声。量子拍频和和模强度噪声降低结合联合收割机以产生两个明亮光束之间的纠缠和相应光束的亚泊松光子统计。
We show that a quantum-beat system with incoherent pump or coherent driving produces an entangled sub-shot-noise laser that operates well above threshold. The numerical results and physical analyses are presented using the combination modes of the lasing fields. The relative mode is decoupled from the active medium and thus remains in its vacuum state, while the sum mode operates well above threshold and has sub-shot-noise. The quantum beat and the sum mode intensity noise reduction combine to yield entanglement between two bright beams and sub-Poissonian photon statistics of the respective beams.