Ding Chunling, Li Jiahua, Yu Rong, Hao Xiangying, Wu Ying
Wuhan National Laboratory for Optoelectronics and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China.
Opt Express. 2012 Mar 26;20(7):7870-85. doi: 10.1364/OE.20.007870.
A scheme for realizing two-dimensional (2D) atom localization is proposed based on controllable spontaneous emission in a coherently driven cycle-configuration atomic system. As the spatial-position-dependent atom-field interaction, the frequency of the spontaneously emitted photon carries the information about the position of the atom. Therefore, by detecting the emitted photon one could obtain the position information available, and then we demonstrate high-precision and high-resolution 2D atom localization induced by the quantum interference between the multiple spontaneous decay channels. Moreover, we can achieve 100% probability of finding the atom at an expected position by choosing appropriate system parameters under certain conditions.
基于相干驱动循环构型原子系统中的可控自发辐射，提出了一种实现二维（2D）原子定位的方案。作为与空间位置相关的原子-场相互作用，自发发射光子的频率携带了有关原子位置的信息。因此，通过检测发射的光子，可以获得可用的位置信息，然后我们证明了由多个自发衰变通道之间的量子干涉引起的高精度和高分辨率二维原子定位。此外，在一定条件下通过选择合适的系统参数，我们可以实现100%的概率在预期位置找到原子。
