论文标题
频率测量与不连贯的泵钙原子的超级脉冲：量子测量背部的作用
Frequency Measurement with Superradiant Pulses of Incoherently Pumped Calcium Atoms: Role of Quantum Measurement Backaction
论文作者
论文摘要
最近的一个实验证明了基于杂尼检测的频率测量值，其在光学晶格时钟系统中相干泵送的腹膜原子的超级脉冲脉冲，而另一个实验分析了来自类似系统中不连贯泵的钙原子的超级脉冲的统计。在本文中，我们建议从钙原子中对超级脉冲进行杂差检测，并从理论上分析相应的原子集成动力学，以集体旋转载体的旋转和超级dicke dicke国家之间的不相同的量子跳跃。我们检查了量子测量背相对于发射场和集体自旋矢量动力学的影响，并证明它在频率测量的建模中起着至关重要的作用。我们开发了一种随机平均场理论，该理论也适用于具有稳态超高信号的模型频率测量值，并探索原子集合动力学中的量子测量效应。
A recent experiment demonstrated heterodyne detection-based frequency measurements with superradiant pulses from coherently pumped strontium atoms in an optical lattice clock system, while another experiment has analyzed the statistics of superradiant pulses from incoherently pumped calcium atoms in a similar system. In this article, we propose to perform heterodyne detection of the superradiant pulses from the calcium atoms, and analyze theoretically the corresponding atomic ensemble dynamics in terms of the rotation of a collective spin vector and the incoherent quantum jumps among superradiant Dicke states. We examine the effect of quantum measurement backaction on the emitted field and the collective spin vector dynamics, and we demonstrate that it plays an essential role in the modelling of the frequency measurements. We develop a stochastic mean field theory, which is also applicable to model frequency measurements with steady-state superradiance signals, and to explore quantum measurement effects in the dynamics of atomic ensembles.
