Quantitative evaluation of space charge effects of laser-cooled three-dimensional ion system on a secular motion period scale 

In this paper,we introduce a method of quantitatively evaluating and controlling the space charge effect of a lasercooled three-dimensional(3 D) ion system in a...
《Chinese Physics B》  2018年 第04期 下载次数(6)| 被引次数()

物理学咬文嚼字之三十九 Secular,equation 

Secular equation,既是别称characteristic equation的久期方程,又是指行星运动的长期均差.西文中本来浑然一体的概念,在汉语语境中却似乎不搭边.
《物理》  2011年 第07期 下载次数(364)| 被引次数(0)

The secular variation of inner zone high energy proton environment in the SAA 

A long-term variation of the inner zone high-energy proton environment at low orbits was investigated by DSTM using the adiabatic approximation of charge partic...
《Science in China(Series D:Earth Sciences)》  2005年 第12期 下载次数(12)| 被引次数(1)

Measurement of the secular motion frequency and the space charge density in the linear ion trap 

This paper reports that a cloud of laser-cooled 40 Ca + is successfully trapped and manipulated in the home-built linear ion trap constructed for quantum inform...
《Chinese Physics B》  2010年 第11期 下载次数(17)| 被引次数(0)

Trapping and laser cooling a single calcium ion 

We experimentally demonstrated trapping and laser cooling a single ion in a miniature Paul trap.Secular motion of the tapped ion was studied to determine the...
第十五届全国原子与分子物理学术会议论文摘要集  2009-07-11 下载次数(6)| 被引次数(0)

Steady bipartite coherence induced by non-equilibrium environment 

We study the steady state of two coupled two-level atoms interacting with a non-equilibrium environment that consists of two heat baths at different temperature...
《Science China(Physics,Mechanics & Astronomy)》  2018年 第01期 下载次数(25)| 被引次数(2)

Compensating for excess micromotion of ion crystals 

A new method of compensating for the excess micromotion along two directions in three-dimensional Coulomb crystals is reported in this paper; this method is bas...
《Chinese Physics B》  2015年 第08期 下载次数(19)| 被引次数(4)


目的 确定含天然放射性物质的物料是否处于非长期平衡 ,以及衰变链中那些长寿命核素被分离或减少。方法 γ能谱测量中 ,长期平衡时天然放射系中各子体的活度浓度与母体相同 ,在非长期平衡时 ,各子体及母体的活度浓度各不相同。结果 处于长期平衡和非长期平衡的物料 ,在判断它们是否“放射性物质”时 ,所依据的核素种类及其豁免活度...
《中国辐射卫生》  2005年 第01期 下载次数(58)| 被引次数(3)