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Conditionally Teleported States Using Optical Squeezers and Photon Counting

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Communications in Theoretical Physics 2002年第4期37卷 409-412页

作者： fanhong－yi FANYue 等 DepartmentofMaterialsScienceandEngineering UniversityofScienceandTechnologyofChinaHefei230026China DepartmentofMaterialsScienceandEngineering UniversityofScienceandTechnologyofChinaHefei230026China

By virtue of the neat expression of the two-mode squeezing operator in the Einstein, Podolsky and Rosen entangled state representation, we provide a new approach for discussing the teleportation scheme using optical squeezers and photon counting devices. We derive the explicit form of the teleported states, so that the conditional property of teleportation and teleportation fidelity of this protocol can be seen more clearly. The derivation is concise.

关键词： conditionally teleported state optical squeezer photon counting

Fractional Fourier Transformation for Quantum Mechanical Wave Functions Studied by Virtue of IWOP Technique

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Communications in Theoretical Physics 2003年第4期39卷 417-420页

作者： fanhong－yi FANYue DepartmentofMaterialScienceandEngineering UniversityofScienceandTechnologyofchinaHefei230026China DepartmentofPhysics ShanghaijiaoTongUniversityShanghai200030China

Starting from the optical fractional Fourier transform (FFT) and using the technique of integration withinan ordered product of operators we establish a formalism of FFT for quantum mechanical wave functions. In doing so, theessence of FFT can be seen more clearly, and the FFT of some wave functions can be derived more directly and *** also point out that different FFT integral kernels correspond to different quantum mechanical representations. Theyare generalized FFT. The relationship between the FFT and the rotated Wigner operator is studied by virtue of theWeyl ordered form of the Wigner operator.

关键词： fractional Fourier transformation IWOP technique Weyl ordering

Reducing Projection Calculation in Quantum Teleportation by Virtue of the IWOP Technique and Schmidt Decomposition of ｜η〉 State

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Communications in Theoretical Physics 2002年第1期37卷 35-38页

作者： fanhong－yi FANYue DepartmentofAppliedPhysics ShanghaiJiaoTongUniversityShanghai200030China

By virtue of the technique of integration within an ordered product of operators and the Schmidt decomposition of the entangled state |η〉, we reduce the general projection calculation in the theory of quantum teleportation to a as simple as possible form and present a general formalism for teleportating quantum states of continuous variable.

关键词：量子力学量子远距传物 IWOP技术

New Eigenmodes of Propagation in Quadratic Graded Index Media and Complex Fractional Fourier Transform

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Communications in Theoretical Physics 2003年第1期39卷 97-100页

作者： fanhong－yi FANYue DepartmentofPhysics ShanghaiJiaoTongUniversityShangahai200030China DepartmentofMaterialScienceandEngineering UniversityofScienceandTechnologyofChinaHefei230026China Department

By introducing a convenient complex form of the α-th 2-dimensional fractional Fourier transform (CFFT) operation we find that it possesses new eigenmodes which are two-mode Hermite polynomials. We prove the eigenvalues of propagation in quadratic graded-index medium over a definite distance are the same as the eigenvalues of the α-th CFFT, which means that our definition of the α-th CFFT is physically meaningful.

关键词： complex fractional Fourier transform two-mode Hermite polynomials

Exact Solution of the Milburn Equation for the Coupled—Channel Cavity QED Model

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Communications in Theoretical Physics 2003年第1期39卷 91-96页

作者： SONGTong_Qiang fanhong－yi DepartmentofPhysics NingboUniversityNingbo315211China CCAST（WorldLaboratory） P.O.Box8730Beijing100080China DepartmentofMaterialScienceandEngineering UniversityofScienceandTechno

We give the exact solution of Milburn equation for a coupled-channel cavity QED model which includes the Stark term and the frequency detuning, and study the influence of the intrinsic decoherence on the atomic invers... 详细信息

关键词： Milburn equation intrinsic decoherence atomic inversion

The P—representation on Nonlinear Coherent State Basis

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Communications in Theoretical Physics 2002年第6期37卷 655-658页

作者： fanhong－yi CHENGHai－Ling DepartmentofMaterialScienceandEngineering UniversityofScienceandTechnologyofChinaHefei230026China

Using the technique of integration within an ordered product of nonlinear Bose operators and by composing the nonlinear coherent state's over-completeness relation, we construct the corresponding P-representation theo... 详细信息

关键词： nonlinear coherent state representation generalized IWOP technique P-representation

Fractional Radon Transform and Transform of Wigner Operator

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Communications in Theoretical Physics 2003年第2期39卷 147-150页

作者： fanhong－yi CHENJun－Hua 等 CCAST（WorldLaboratory） P.O.Box8730Beijing100080China DepartmentofMaterialScienceandEngineering UniversityofScienceandTechnologyofChinaHefei230026China DepartmentofMaterialSci

Based on the Radon transform and fractional Fourier transform we introduce the fractional Radon trans-formation (FRT). We identify the transform kernel for FRT. The FRT of Wigner operator is derived, which naturallyre... 详细信息

关键词： fractional Radon transformation Wigner operator IWOP techneque

Statistical Properties of the nonlinear SU（1,1） Coherent States

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Communications in Theoretical Physics 2002年第5期37卷 593-596页

作者： SONGTong－Qiang fanhong－yi DepartmentofPhysics NingboUniversityNingbo315211China CCAST（WorldLaboratory） P.O.Box8730Beijing100080China

Using non-Hermitian realizations of SU(1,1) Lie algebra in terms of an f-oscillator, we generalize the notion of nonlinear coherent states to the single-mode and two-mode nonlinear SU(1,1) coherent states. Taking the ... 详细信息

关键词： f-oscillator nonlinear SU(1,1) coherent states statistical properties

Entanglement of the Common Eigenvector of Two Particles‘ Center—of—Mass Coordinate and Mass—Weighted Relative Momentum

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Communications in Theoretical Physics 2002年第5期37卷 535-538页

作者： fanhong－yi SUNMing－Zhai DepartmentofMaterialScienceandEngineering UniversityofScienceandTechnologyofChinaHefei230026China

We reveal that the common eigenvector of two particles' center-of-mass coordinate and mass-weightedrelative momentum is an entangled state. Its Schmidt decomposition exhibits that the entanglement involves squeezingwh... 详细信息

关键词： center-of mass coordinate mass-weighted relative momentum entangled state