共查询到20条相似文献,搜索用时 15 毫秒
1.
M. Darwish 《International Journal of Theoretical Physics》2008,47(11):3035-3056
In this paper the even and odd nonlinear negative binomial states of the radiation field are introduced. These states interpolates
between even (odd) number states and the even (odd) nonlinear coherent states. The Glauber second-order correlation function
is calculated for these states. The squeezing phenomenon (normal and amplitude-squared squeezing), the quasi-probability distribution
function Q-function, Wigner-function and the phase properties, are also discussed. Examination of the resonance fluorescence against
the present state is given. It has been shown that the atomic inversion is sensitive to any variation in the even and odd
nonlinear negative binomial number M and the nonlinearity parameter η. 相似文献
2.
Phase properties of the even and odd circular states are
studied within the Hermitian phase formalism of Pegg and Barnett.
Exact analytical formulas for the distribution function and the
variance of the phase operator are obtained and used to examine
whether or not the even and odd circular states exhibit
photon-number squeezing and phase squeezing. 相似文献
3.
Faisal A. A. El-Orany M. H. Mahran A.-S. F. Obada M. Sebawe Abdalla 《International Journal of Theoretical Physics》1999,38(5):1493-1520
In this paper we investigate the odd binomialstate, which interpolates between odd number and oddcoherent states. We discuss the statistical propertiesof the Glauber second-order correlation function and squeezing phenomena (normal squeezing andamplitude-squared squeezing). The phase properties inPegg-Barnett formalism are considered, and thequasiprobability distribution functions are examined.The dynamics of the Jaynes-Cummings model and theresonance fluorescence are also discussed. 相似文献
4.
ZHANYou-Bang ZHOUPing FUHao 《理论物理通讯》2004,42(6):932-936
Dynamic evolution of a mesoscopic Josephson junction (MJJ) interacting with excited even and odd coherent states is studied. It is shown that the supercurrent in MJJ exhibits both collapse and revival (CR) phenomenon and squeezing effect. It is also shown that the CR and squeezing of supercurrent are related to degree of excitation and average photon number. 相似文献
5.
ZHAN You-Bang ZHOU Ping FU Hao 《理论物理通讯》2004,42(12)
Dynamic evolution of a mesoscopic Josephson junction (M J J) interacting with excited even and odd coherent states is studied. It is shown that the supercurrent in MJJ exhibits both collapse and revival (CR) phenomenon and squeezing effect. It is also shown that the CR and squeezing of supercurrent are related to degree of excitation and average photon number. 相似文献
6.
研究了奇偶q变形相干态中光场的高阶压缩效应.数值计算结果发现,奇偶q变形相干态中光场的高阶压缩效应与参数值q有关,当参数q取偏离1较大的值时,q变形奇偶相干态均可具有奇次方阶压缩效应却无偶次方阶压缩效应,这与通常奇偶相干态的压缩特性是不同的
关键词:
光场
q变形相干态
高阶压缩效应 相似文献
7.
8.
9.
PropertiesofAmplitudeNth┐powerSqueezingofEvenandOddqs┐CoherentStatesWANGJisuo1)SUNChangyong1)HEJinyu2)(1)DepartmentofPhysics... 相似文献
10.
Kerr偶奇相干态及其非经典性 总被引:6,自引:0,他引:6
本文对Ker偶奇相干态及其非经典性质进行了研究。结果表明:Kerr偶相干态可呈现周期性的二阶压缩效应,Kerr奇相干态则不存在这种压缩效应;但两者均可呈现周期性的振幅平方压缩效应,这与通常偶奇相干态的情形有所不同。 相似文献
11.
构造出了一种新的奇偶非线性相干态, 并借助于数值计算方法研究了它们的压缩、振幅平方压缩、反聚束和相位概率分布等非经典性质. 结果表明, 与通常的奇偶相干态和非线性奇偶相干态不同, 在参数|λ|的不同取值范围内, 新的奇偶非线性相干态在Y1和Y2两个方向均可呈现振幅平方压缩效应, 而压缩效应仅在偶非线性相干态的X2方向上呈现, 反聚束效应仅在奇非线性相干态中呈现. 另外, 通过研究新的奇偶非线性相干态相位概率分布, 发现新的奇偶非线性相干态具有完全不同的量子干涉特性.
关键词:
新的奇偶非线性相干态
压缩效应
反聚束
相位概率分布 相似文献
12.
Ji-Suo Wang Tang-Kun Liu Jian Feng Jin-Zuo Sun 《International Journal of Theoretical Physics》2004,43(9):1907-1916
A class of even and odd nonlinear coherent states are introduced. The properties of some related states, including quadrature squeezing, antibunching effect and phase probability distribution, are studied. 相似文献
13.
Ji-Suo Wang Tang-Kun Liu Jian Feng Jin-Zuo Sun 《International Journal of Theoretical Physics》2004,43(6):1469-1478
A class of even and odd nonlinear coherent states are introduced. The properties of some related states, including quadrature squeezing, antibunching effect, and phase probability distribution, are studied. 相似文献
14.
q变形非简谐振子奇偶广义相干态的高阶压缩效应及反聚束效应 总被引:2,自引:0,他引:2
研究了q变形非简谐振子奇偶广义相干态的高阶压缩效应和反聚束效应,并就q变量[χ]的两种不同表示情况进行了讨论.数值计算结果表明,q变形非简谐振子奇偶广义相干态均可呈现奇次方阶压缩效应和反聚束效应,这与谐振子情况的光学统计特性是不同的. 相似文献
15.
构造出了有限维Hilbert空间Roy型奇偶非线性相干态, 讨论了它们的正交归一完备性和振幅平方压缩效应. 研究表明, 在此空间中Roy型奇偶非线性相干态是归一完备的, 但不具有正交性; 当复参数相位角θ满足一定条件时它们存在振幅平方压缩效应, 同时导出了压缩条件与参数s,r以及函数f(n)之间的关系. 最后借助于数值计算, 发现对于5维(或7维)Hilbert空间中Roy型偶(或奇)非线性相干态, 当参数θ和Lamb-Dike参数η取某一给定值时, 在参数r变化的不同取值范围内, 它们均可以呈现振幅平方
关键词:
有限维Hilbert空间
Roy型非线性相干态
奇偶非线性相干态
振幅平方压缩 相似文献
16.
第二类奇偶q相干态及其性质 总被引:1,自引:0,他引:1
本文以新的参数化方式引入第二类奇偶 q 相干态,并定义了 q 压缩概念。第二类奇偶 q 相干态的压缩效应和反聚束效应类似于奇偶相干态,但存在q压缩效应。 相似文献
17.
18.
奇偶相干态中测量相位算符的涨落及其压缩 总被引:14,自引:0,他引:14
利用Barnett和Pegg提出的测量相位算符讨论了奇偶相干态中的相位涨落及其高阶涨落,在测不准关系和高阶测不准关系基础上给出了测量相位压缩和高阶压缩的二类定义,并用这二类定义研究了奇偶相干态中测量相位的二阶和高阶压缩情况。 相似文献
19.
Meng Xiang-Guo Wang Ji-Suo Li Yan-Ling 《International Journal of Theoretical Physics》2007,46(5):1205-1214
In this paper, a new kind of even and odd nonlinear coherent states (NLCSs) are introduced. Some nonclassical properties of
the states are investigated. It has been found that the new even and odd NLCSs exhibit quadrature squeezing and amplitude-squared
squeezing in the Y
2 direction, however the new odd NLCSs only display sub-Poissonian behaviour. The results show that the nonclassical properties
of the new even and odd NLCSs are rather different from those of the usual even and odd coherent states and NLCSs.
PACS numbers:42.50.-p, 03.65.-w 相似文献
20.
The even and odd coherent states of a deformed harmonic oscillator in a finites-dimensional Hilbert space are studied. It is shown that both fors even ands odd, the even q-coherent states exhibit quadrature and amplitude-squared squeezing, while the odd q-coherent states show
an antibunching effect and amplitude-squared squeezing. 相似文献