...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical Review, A >Mesoscopic physics in vapor-phase atomic systems: Collision-shift gradients and the 0-0 hyperfine transition
【24h】

Mesoscopic physics in vapor-phase atomic systems: Collision-shift gradients and the 0-0 hyperfine transition

机译：气相原子系统中的介观理：碰撞梯度和0-0血清过渡

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Vapor-phase atomic clocks and atomic magnetometers are achieving levels of stability and measurement precision today that would have been considered unrealistic in the not too distant past. To make further progress, researchers will need a more detailed understanding of vapor-phase atomic physics, in particular, the manner in which mesoscopic variations of atomic perturbations map onto the observed resonant phenomena: length scales larger than that of homogeneous quantum dynamics, where atoms within some localized region of the vapor all experience the same optical and microwave fields and collisional perturbations; but smaller than that of the vapor as a whole, where the atomic system is described in terms of (for example) vapor pressure, heat content, and optical depth. In this paper, we discuss the issue of mesoscopic physics as it manifests itself in vapor-phase collision-shift gradients affecting the 0-0 hyperfine transition of ~(87)Rb. We show that these gradients not only produce increased line broadening but lead to lineshape asymmetry and an increased sensitivity of the observed resonance to power-broadening. We develop a statistical theory describing the experimental results, and through that theory we show that mesoscopic atomic physics encompasses a broader class of phenomena than that described by the circumscribed term "inhomogeneous broadening."
机译：气相原子钟和原子磁力计是实现今天的稳定性和测量精度的水平，这在不太遥远的过去中被认为是不现实的。为了进一步进步，研究人员需要更详细地了解气相原子物理学，特别是原子扰动图在观察到的共振现象上的介绍变异的方式：长度比均匀量子动态的长度尺度，其中原子在一些局部区域内，蒸汽区域均经历相同的光学和微波场和碰撞扰动;但小于整体的蒸汽的蒸汽，在其中（例如）蒸气压，热含量和光学深度方面描述的原子系统。在本文中，我们讨论了介性物理学的问题，因为它在影响〜（87）Rb的0-0 Hyperfine转变的气相碰撞梯度中表现出来。我们表明这些梯度不仅产生增加的线宽，而且导致线厚度不对称，并且观察到的谐振对电力扩展的敏感性增加。我们开发了描述实验结果的统计理论，通过该理论，我们表明介观原子物理包括更广泛的现象，而不是由外接术语“不均匀扩大”所描述的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号