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Simplified Scheme for Testing Symmetrization Postulate for Photons

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Communications in Theoretical Physics 2007年第5期47卷 913-915页

作者： ye sai-Yun Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

We propose a scheme for testing the small violations of the symmetrization postulate （SP） for photons in cavity QED. In the scheme, a degenerate A-type three-level atom is sent through a cavity field initially in a q-deformed coherent state. After an appropriate interaction time, the atom is measured by a state-selective detector. The probability that the atom makes a transition from one of the lower states to the other characterizes the violation of the SP. In the scheme, only one atom is required and classical fields are unnecessary, which is prior to the previous schemes.

关键词： symmetrization postulate photon Raman interaction

Teleportation of an Unknown Atomic State via Adiabatic Passage

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Communications in Theoretical Physics 2007年第5X期48卷 834-836页

作者： ye sai-Yun Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

We propose a scheme for teleporting an unknown atomic state via adiabatic passage. Taking advantage of adiabatic passage, the atom has no probability of being excited and thus the atomic spontaneous emission is suppre... 详细信息

关键词： teleportation adiabatic evolution cavity decay

Enhancement of Squeezing in Two-Photon Jaynes-Cummings Model with Atomic Measurement

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Communications in Theoretical Physics 2006年第1期45卷 147-150页

作者： ye sai-Yun Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China~

We investigate the squeezing properties of the cavity field in the degenerate two-photon Jaynes Cummings model. Compared with the one-photon Jaynes-Cummings model, the squeezing is more pronounced in the case of two-p... 详细信息

关键词： squeezed state two-photon transitions selective atomic measurement

Teleporation of an Arbitrary Two-Particle State Without Bell-State Measurement in Cavity QED

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Communications in Theoretical Physics 2008年第6期49卷 1596-1598页

作者： ZHONG Zhi-Rong ye sai-Yun SU Wan-Jun Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

A scheme for approximately conditional teleportation of an arbitrary two-particle state without Bell-state measurement in cavity QED is presented. The scheme involves four two-level atoms and two single-mode cavities. The detection of atoms 3 and 4 collapses the atoms 1 and 2 to the initial state of atoms 3 and 4, while the cavity fields left in the vacuum state. The probability of success and the fidelity of our scheme are 0.125 and 0.98, respectively.

关键词： teleportation arbitrary two-particle state

Analysis of Fluid-Structure Interaction during Fracturing with Supercritical CO_(2)

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Fluid Dynamics & Materials Processing 2024年第12期20卷 2887-2906页

作者： Jiarui Cheng Yirong Yang sai ye Yucheng Luo Bilian Peng Xi’an Key Laboratory of Wellbore Integrity Evaluation Xi’an Shiyou UniversityXi’an710065China CCDC Changqing Downhole Technology Company China National Petroleum CorporationXi’an712042China

During the implementation of CO_(2) fracturing for oil and gas development,the force transfer effect caused by the unsteady flow of high-pressure CO_(2) fluid can lead to forced vibration of the tubing and ensuing structural *** this study,a forced vibration analysis of tubing under CO_(2) fracturing conditions is carried out by taking into account the fluid-structure coupling and related interaction forces by means of the method of characteristics(MOC).The results show that for every 1 m^(3)/min increase in pumping displacement,the fluid flow rate increases up to 3.67 m/*** flow pressure in the pipe tends to be consistent with the pumping pressure at the initial stage and then decreases with an increase in the pump starting *** the pumping pressure increases by 10 MPa,the additional stress in the tubing increases by 11.8%,and the peak value of the additional stress at the bottom of the well is the *** temperature in the tubing grows with well depth,which causes a phase change in CO_(2) due to heat *** this time the pressure in the tubing decreases,the fluid flow rate increases by about 1.12 m/s,and the additional stress grows by about 1.5 MPa.

关键词： Supercritical CO_(2) fracturing fluid-structure interaction method of characteristics(MOC) vibration characteristics

Generation of Vibrational Entangled Coherent States of Two Trapped Ions

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Communications in Theoretical Physics 2005年第4X期44卷 712-714页

作者： LIN Li-Hua JIANG Yun-Kun YANG Zhen-Biao ye sai-Yun Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

We propose a scheme for the generation of entangled coherent states for the center-of-mass and relative vibrational modes of two trapped ions. In the scheme the ions are simultaneously illuminated by a single standing-wave laser tuned to the carrier. The scheme allows the production of an entangled coherent states with a considerably high speed as long as a laser field of sufficiently high intensity is available.

关键词： entangled coherent state vibrational mode trapped ion

Scheme for Generating Entangled States of two Cavity Modes via Adiabatic Passage

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量子光学学报 2006年第B8期12卷 30-30页

作者： ye sai-yun Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

Scheme for Generating Entangled States of two Cavity Modes via Adiabatic Passage

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Scheme for Generating Entangled States of two Cavity Modes v...

第十二届全国量子光学学术会议

作者： ye sai-yun (Department of Electronic Science and Applied Physics, Fuzhou University, Fuzhou 350002, China)

＜正＞A scheme is proposed for generating entangled states of two cavity modes in a bimodal cavity via adiabatic passage. It is based on the resonant interaction of a ladder-type three-level atom with two cavity modes assisted by classical fields. We also show that multi-atom W states can be prepared by abiabatic evolution.

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基于IPTV的AAA服务器的设计与实现

计算机工程 2008年第15期34卷 126-128页

作者：叶赛张洪伟四川大学计算机学院成都610064

网络电视(IPTV)的设备提供商与运营商拥有各自的用户认证、授权与计费系统,各系统间互不兼容且性能差异大。该文根据AAA的原理与IPTV系统的业务特点,提出一个基于IPTV系统的统一AAA服务器的设计方案。系统采用AAA最新的Diameter协议,优... 详细信息

网络电视(IPTV)的设备提供商与运营商拥有各自的用户认证、授权与计费系统,各系统间互不兼容且性能差异大。该文根据AAA的原理与IPTV系统的业务特点,提出一个基于IPTV系统的统一AAA服务器的设计方案。系统采用AAA最新的Diameter协议,优化认证、授权和计费过程,通过引入高速cache,解决大量访问造成的性能瓶颈。实验证明了该方案的可行性。

关键词： AAA服务器网络电视 Diameter协议缓存