排序方式: 共有7条查询结果,搜索用时 515 毫秒
1
1.
2.
Generation of NIulticomponent NIotional Coherent and Squeezed Coherent States of N Trapped Ions by a Dispersive Interaction
下载免费PDF全文
![点击此处可从《中国物理快报》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Following the recent proposal by Solano E et al. [Phys. Rev. Left. 87 (2001) 060402] a procedure is proposed to generate arbitrary discrete multicomponent motional coherent and squeezed coherent states of N trapped ions by additionally using a dispersive bichromatic interaction in a long-living and fast way. In this procedure, two lasers in the Raman configuration are tuned quasiresonant and resonant with N two-level ions under different conditions, respectively. Furthermore, we show how the idea can be used for the generation of two-mode SU(2) Schrdinger cat states for the vibrational motion of a single ion trapped in a two-dimensional harmonic potential. 相似文献
3.
建立了含克尔介质微波激射器腔场稳态光子数分布的表达式.研究了在热原子、临界和超 冷原子的方式下微波激射器中原子在稳态时的反转特性. 结果表明:注入的二能级原子在不 同方式下,原子的反转特性不一样. 在热原子方式下,原子在一部分腔长L的区域无反转, 且随原子注入速率的增大,反转区域和反转概率增大. 在临界方式下,原子的反转呈现周期 性的坍塌和复苏现象. 而在冷原子方式下,原子在腔长L的全部区域无反转. 克尔效应和失 谐量使原子的反转概率减小.
关键词:
微波激射器
原子反转
光子统计
克尔效应 相似文献
4.
We have established the master equation for the micromaser with a Kerr medium,we have studied the photon statics of the micromaser with a Kerr medium field and analysed the influence of the Kerr effect on the photon statistics,The influence of the Kerr effect on the photon statistics is different in two regimes,In the thermal-atom regime,the Kerr effect produces quantum noise,and decreases the mean photon number.In the ultracold-atom regime,with the increase of the nonlinear parameter of the Kerr medium,the stability of the mean photon number and the normalized variance enhances the mean photon number,and the normalized variance exhibits collapse-revival phenomena periodically,their resonance peaks become lower,and the photon statistics of more and more regions are sub-Poissonian. 相似文献
5.
6.
7.
应用荧光纳米颗粒测定痕量铜 总被引:1,自引:0,他引:1
制备了异硫氰酸罗丹明B(TRITC)荧光纳米颗粒,于pH 6.0的磷酸盐缓冲溶液中此荧光纳米颗粒在558 nm光的激发下,于586 nm波长处发射荧光.铜(Ⅱ)的存在可使此荧光纳米颗粒溶液的荧光发生猝灭.借此,构建了一种检测微量铜的方法.在最佳试验条件下,该方法测定铜的线性范围为5.00×10-5~3.50×10-4 mol·L-1,其回归方程为F/F0=8.425 2-1.009×10-6 c,检出限为3.55×10-5 mol·L-1. 相似文献
1