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A new kind of four-mode continuous variable coherent-entangled state is proposed in the Fock space by using the technique of integration within an ordered product,which exhibits both the properties of a coherent state and an entangled state,and spans a complete and orthonormal representation.The conjugate state of the four-mode continuous variable coherent-entangled state is derived by using the Fourier transformation.Moreover,a simple experimental protocol of generating a four-mode continuous variable coherent-entangled state is proposed by using beam splitters.As applications of this four-mode continuous variable coherent-entangled state,a four-mode entangled state and a four-mode squeezing-Fresnel operator are constructed. 相似文献
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为了既节省稀有昂贵的冰洲石晶体材料,又实现偏振光的大剪切差输出,采用冰洲石晶体与光学玻璃组合的方法,设计了一种新型平行分束偏光镜。该棱镜的前后半块分别为ZBaF3玻璃和冰洲石晶体,由大折射率液态胶合剂溴代萘胶合而成。实验测试表明:该棱镜透射的2束平行光的消光比,o光可达10-5;尽管受到光学玻璃的影响,e光的消光比仍优于10-3;透射比均与纯冰洲石晶体材料的棱镜基本相当。理论分析表明:该棱镜自身结构带来的性能影响在一定情况下完全可以忽略,因此具有较好的应用前景。 相似文献
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New two-mode intermediate momentum-coordinate representation with quantum entanglement and its application
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We construct four linear composite operators for a two-particle
system and give common eigenvectors of those operators. The
technique of integration within an ordered product (IWOP) of
operators is employed to prove that those common eigenvectors are
complete and orthonormal. Therefore, a new two-mode intermediate
momentum-coordinate representation which involves quantum
entanglement for a two-particle system is proposed and applied to
some two-body dynamic problems. Moreover, the pure-state density
matrix | ξ 1 ,ξ 2 >C,DC,D< ξ 1 ,ξ 2 | is a Radon
transform of Wigner operator. 相似文献
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New approach for anti-normally and normally ordering bosonic-operator functions in quantum optics
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In this paper, we provide a new kind of operator formula for anti-normally and normally ordering bosonic-operator functions in quantum optics, which can help us arrange a bosonic-operator function f(λQ +νP) in its anti-normal and normal ordering conveniently. Furthermore, mutual transformation formulas between anti-normal ordering and normal ordering, which have good universality, are derived too. Based on these operator formulas, some new differential relations and some useful mathematical integral formulas are easily derived without really performing these integrations. 相似文献
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Using the normally ordered Gaussian form of the Wigner operator we recapitulate the quantum phase space representation, we derive a new formula for searching for the classical correspondence of quantum mechanical operators; we also show that if there exists the eigenvector |q〉λ,v of linear combination of the coordinate and momentum operator, (λQ + vP), where λ,v are real numbers, and |q〉λv is complete, then the projector |q〉λ,vλ,v〈q| must be the Radon transform of Wigner operator. This approach seems concise and physical appealing. 相似文献
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基于ISP器件的可编程变量程数字频率计的设计研究 总被引:1,自引:0,他引:1
用ispLSIl032设计了可编程变量程数字频率计逻辑电路,此电路适于工业控制领域的伺服系统和人们日常生活中对数字信号频率的测量. 相似文献
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用ISP器件进行可编程数字钟逻辑电路设计的研究 总被引:3,自引:2,他引:1
采用自行研制的基于ISP器件的数模两用仿真开发系统和ispEXPERT设计软件,利用层次化管理混合输入方式设计的方法,实现了可编程数字钟逻辑电路的设计。 相似文献