Light Force induced Line Distortions in Laser Spectroscopy----管家婆彩图
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Light Force induced Line Distortions in Laser Spectroscopy
2016-11-18  【 】【打印】【关闭

Institute of Theoretical Physics

Chinese Academy of Sciences

 Key Laboratory of Theoretical Physics

Seminar

Title

题目

Light Force induced Line Distortions in Laser Spectroscopy

Speaker

报告人

Dr. Yue Chang

Affiliation

所在单位

Max-Planck-Institute for Quantum Optics

Date

日期

11月18日,下午15:00

Venue

地点

ITP NEW BUILDING ROOM 6420

Abstract

联系人

Tests of a theory are normally carried out by comparing experimental results to theoretical predictions. In Quantum electrodynamics (QED), theoretical predictions require inputting extremely precise values of, for instance, the fine structure constant $\alpha$, which can only be obtained from precision QED experiments. Among various measurement methods, laser spectroscopy is one of powerful ones. In this work, we discuss an effect that can occur in high resolution spectroscopy of atoms that fly almost perpendicular through a standing laser wave. The strong field gradient gives rise to a force acting on the atomic dipole which redistributes the atomic density. Since this redistribution depends on the laser detuning, line shape distortions and hence systematic frequency shifts are the result. We describe this effect in the quantum regime of the motion of the atoms and also discuss the classical limit.

Contact Person

联系人

易俗
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