arXiv quant-ph/96110201996-11-13quant-ph

量子Zeno效应与单原子的光暗周期

Quantum Zeno Effect and Light-Dark Periods for a Single Atom

Almut Beige, Gerhard C. Hegerfeldt

备注：: 16 pages, LaTeX, a4.sty; to appear in J. Phys. A
发表信息：: J.Phys.A30:1323-1334,1997
DOI：: 10.1088/0305-4470/30/4/031

摘要：

量子芝诺效应（QZE）预测了在快速重复的理想测量下系统的时间发展的减慢，并且在实验上使用短激光脉冲对非选择性状态测量的原子系综进行了测试。在这里，我们考虑这样的脉冲选择性测量一个单一的系统。每个探测脉冲将引起荧光突发或无荧光。如果探测脉冲是严格理想的测量，QZE将预测荧光猝发的周期与无荧光的周期（亮周期和暗周期）交替，其将随着测量频率的增加而变得越来越长。通过将激光脉冲纳入相互作用中来考虑测量的非理想特性，并且这用于确定对理想情况的校正。在极限情况下，当激光脉冲之间的时间为零时，不会发生冻结，而是会收敛到连续驱动的Dehmelt系统的熟悉的宏观亮期和暗期。这类实验对阱中的单个原子或离子应该是可行的

英文摘要：

The quantum Zeno effect (QZE) predicts a slow-down of the time development of a system under rapidly repeated ideal measurements, and experimentally this was tested for an ensemble of atoms using short laser pulses for non-selective state measurements. Here we consider such pulses for selective measurements on a single system. Each probe pulse will cause a burst of fluorescence or no fluorescence. If the probe pulses were strictly ideal measurements, the QZE would predict periods of fluorescence bursts alternating with periods of no fluorescence (light and dark periods) which would become longer and longer with increasing frequency of the measurements. The non-ideal character of the measurements is taken into account by incorporating the laser pulses in the interaction, and this is used to determine the corrections to the ideal case. In the limit, when the time between the laser pulses goes to zero, no freezing occurs but instead we show convergence to the familiar macroscopic light and dark periods of the continuously driven Dehmelt system. An experiment of this type should be feasible for a single atom or ion in a trap

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

摘要：

英文摘要：

相关论文