Quantum Effects of Phase-Conjugate Mirrors on Atomic Systems

提出了在相位共轭镜（PCM）存在下原子辐射特性的实验和理论研究。这些研究将研究量子理论的预测，即当原子与PCM辐射耦合时，处于基态的原子会自发地被激发。这些结果证实了用经典场论描述该系统不足以描述PCM对原子的影响。PCM将基于钾蒸气电池中四波混频的非线性光学过程。PCM的量子噪声特性将被表征为提出研究的主要目标的前兆。在相位共轭谐振器的存在下，对原子的辐射特性也将作进一步的实验和理论研究。这些研究提供了研究原子集合的行为的可能性，当与原子耦合的场模式的一小部分处于压缩真空状态时。

Experimental and theoretical studies of the radiative properties of atoms that are in the presence of a phase- conjugate mirror (PCM) are proposed. The studies will investigate the prediction from quantum theory that an atom in its ground state is spontaneously excited when the atoms is radiatively coupled to a PCM. These results would confirm that the description of this system using classical field theory is inadequate to describe the effect of the PCM on the atoms. The PCM will be based on the nonlinear optical process of four- wave mixing in a potassium vapor cell. The quantum-noise properties of the PCM will be characterized as a precursor to the primary goal of the proposed research. Additional experimental and theoretical studies on the radiative properties of atoms in the presence of a phase- conjugate resonator will also be made. These studies offer the possibility of studying the behavior of a collection of atoms when a fraction of the field modes to which the atoms are coupled are in a squeezed vacuum state.