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Some Properties of Two-mode Displaced Excited Squeezed Vacuum States

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Communications in Theoretical Physics 2009年第9期52卷 493-499页

作者： meng xiang-guo WANG Ji-Suo LIANG Bao-Long Department of Physics Liaocheng University Liaocheng 252059 China

In this paper,two-mode displaced excited squeezed vacuum states (TDESVS) are constructed and theirnormalization and completeness are *** the entangled state representation and Weyl ordering formof the Wigner operator,the Wigner functions of TDESVS are obtained and the variations of Wigner functions withthe parameters m,n and r are ***,two marginal distributions of Wigner functions of TDESVS areobtained,which exhibit some entangled properties of the two-particle's system in TDESVS.

关键词： two-mode displaced excited squeezed vacuum state Weyl ordering Wigner function marginal distribution entangled state representation

Husimi Functions of Excited Squeezed Vacuum States

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Communications in Theoretical Physics 2009年第9期52卷 487-492页

作者： meng xiang-guo WANG Ji-Suo LIANG Bao-Long Department of Physics Liaocheng University Liaocheng 252059 China

Based on the Husimi operator in pure state form introduced by Fan et al,which is a squeezed coherentstate projector,and the technique of integration within an ordered product (IWOP) of operators,as well as the entangledstate representations,we obtain the Husimi functions of the excited squeezed vacuum states (ESVS) and two marginaldistributions of the Husimi functions of the ESVS.

关键词： excited squeezed vacuum state IWOP technique entangled state representation Husimi operator Husimi function marginal distribution

Two-Mode Excited Squeezed Vacuum State and Its Properties

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Communications in Theoretical Physics 2008年第5期49卷 1299-1304页

作者： meng xiang-guo WANG Ji-Suo LIANG Bao-Long Department of Physics Liaocheng University Liaocheng 252059 China

In this paper, the two-mode excited squeezed vacuum state （TESVS） is studied by using the statistical method. By calculating the normalization of the TESVS, a new form of Jacobi polynomials and some new identities are obtained. The photon number distribution of the TESVS is given and it is a simple form of Jacobi polynomials. Using the entangled state representation of Wigner operator, the Wigner function of the TESVS is obtainded and the variations of the Wigner function with the parameters m, n, and r are discussed. Here from the phase space point of view the TESVS can be well interpreted and described.

关键词： two-mode excited squeezed vacuum state photon number distribution Wigner function entangled state representation

Entangled States in a Single-Qubit Structure with SQUID Coupled with a Super-conducting Resonator

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Communications in Theoretical Physics 2008年第1期49卷 88-92页

作者： LIANG Bao-Long WANG Ji-Suo meng xiang-guo School of Physical Science and Information Engineering Liaocheng University Liaocheng 252059 China

In this paper, the number-phase quantization scheme of the mesoscopic circuit, which consists of a singlequbit structure with superconducting quantum interference device coupled with a super-conducting resonator, is given. By introducing a unitary matrix and by means of spectral decomposition, the Hamiltonian operator of the system is exactly formulated in compact forms in spin-l/2 notation. The eigenvalues and the eigenstates of the system are investigated. It is found that using this system the entangled states can not only be prepared, but also be manipulated by tuning the magnetic flux through the super-conducting loop.

关键词： single-qubit super-conducting resonator quantization spectral decomposition entangled state

Wigner Function and Phase Probability Distribution of q-Analogue of Squeezed One-Photon State

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Communications in Theoretical Physics 2008年第6期49卷 1457-1460页

作者： meng xiang-guo WANG Ji-Suo LIANG Bao-Long Department of Physics Liaocheng University Liaocheng 252059 China

In this paper, in terms of the technique of integration within an ordered product （IWOP） of operators and the properties of the inverses of q-deformed annihilation and creation operators, normalizable q-analogue of the squeezed one-photon state, which is quite different from one introduced by Song and Fan [Int. 3. Theor. Phys. 41 （2002） 695], is constructed. Moreover, the Wigner function and phase probability distribution of q-analogue of the squeezed one-photon state are examined.

关键词： q-analogue of the squeezed one-photon state IWOP technique Wigner function phase probability distribution

A Family of Generalized Wigner Operators and Their Physical Meaning as Bivariate Normal Distribution

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Chinese Physics Letters 2011年第10期28卷 109-111页

作者： WANG Ji-Suo meng xiang-guo FAN Hong-Yi Shandong Provincial Key Laboratory of Laser Polarization and Information Technology College of Physics and EngineeringQufu Normal UniversityQufu 273165 Department of Physics Liaocheng UniversityLiaocheng 252059

By extending the usual Wigner operator to the s−parameterized one,we find that in the process of the generalized Weyl quantization the s parameter plays the role of correlation between two quadratures Q and *** can be exposed by comparing the normally ordered form ofΩs with the standard form of the Gaussian bivariate normal distribution of random variables in *** different expressions ofΩs and the quantization scheme with use of it are presented.

关键词： ordered Wigner quadrature

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尼尔基水库溢洪道弧门泄流曲线修正

东北水利水电 2025年第2期43卷 43-46,72页

作者：刘晓旭杨春辉孟祥国嫩江尼尔基水利水电有限责任公司黑龙江齐齐哈尔161005

为解决尼尔基水库开启溢洪道闸门泄洪期间计算的出库流量较实测出库流量偏大的问题,文中通过分析历史泄洪数据,同时针对溢洪道闸孔下游流速快、流态不稳定和发电机组尾水流态不稳定、不易开展测流等情况,采取在溢洪道上游进水渠利用遥... 详细信息

为解决尼尔基水库开启溢洪道闸门泄洪期间计算的出库流量较实测出库流量偏大的问题,文中通过分析历史泄洪数据,同时针对溢洪道闸孔下游流速快、流态不稳定和发电机组尾水流态不稳定、不易开展测流等情况,采取在溢洪道上游进水渠利用遥控无人船搭载M9型ADCP测流的方法,掌握准确的泄洪流量。对比实测和计算的泄洪流量,通过修正孔流时泄流公式参数,分析不同参数下的随机不确定度,求解最优的泄流公式参数。利用求解的最优参数计算泄洪流量,并根据规范要求,对其进行符号、适线和偏离数值检验,结果均满足要求。

关键词：泄流曲线溢洪道闸门修正尼尔基水库

Rapid Deformation Calculation for Large Reflector Antennas:A Surrogate Model Method

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Research in Astronomy and Astrophysics 2023年第1期23卷 4-17页

作者： Zi-Han Zhang Qian Ye Li Fu Jin-Qing Wang meng guo-xiang Zhi-Qiang Shen School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China

The surface accuracy of the large-aperture reflector antenna has a significant influence on the observation *** researchers have focused on using the finite element(FE)simulation to study the effect of gravity and heat on the deformation distribution of the main ***,the temperature distribution of the antenna is challenging to obtain,and it takes a long time for the FE simulation to carry out FE modeling and *** address these limitations,this study presents a surrogate model based on Extreme Gradient Boosting(XGBoost)and deep Convolutional Neural Network(CNN)to get the deformation distribution of the main reflector *** the design of the surrogate model,using the XGBoost algorithm and sparse sampling to solve the difficulty of obtaining the entire temperature distribution is first proposed,and then a deep CNN is developed for estimating *** on the effect of dynamic loads on the antenna structure,a diverse data set is generated to train and test the surrogate *** results show that the surrogate model reduces the calculating time dramatically and can obtain the indistinguishable deformation compared to the FE *** technique provides a valuable tool for temperature and deformation calculation of large-aperture antennas.

关键词： telescopes-methods analytical-methods numerical-methods data analysis

Catalytic pyrolysis of atmospheric residue on a fluid catalytic cracking catalyst for the production of light olefins

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燃料化学学报 2009年第1期37卷 124-128页

作者： YANG Lian-guo meng xiang-hai XU Chun-ming GAO Jin-sen LIU Zhi-chang State Key Laboratory of Heavy Oil Processing China University of Petroleum （Beijing） Beijing 102249 China

Catalytic pyrolysis of Chinese Daqing atmospheric residue on a commercial fluid catalytic cracking(FCC) catalyst was investigated in a confined fluidized bed *** results show that the commercial FCC catalyst has good capability of cracking atmospheric residue to light *** analysis of gas samples shows that the content of total light olefins in cracked gas is above 80%.The analysis of liquid samples shows that the content of aromatics in liquid samples ranges from 60% to 80%,and it increases with the enhancement of reaction *** yield of total light olefins shows a maximum with the increase of reaction temperature,the weight ratios of catalyst-to-oil and steam-to-oil,*** optimal reaction temperature,the weight ratios of catalyst-to-oil and steam-to-oil are about 650℃,15 and 0.75,respectively.

关键词：催化裂化石油化工技术原油预处理技术温度