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Dynamics of Information Entropies of Atom-Field Entangled States Generated via the Jaynes-Cummings Model

Communications in Theoretical Physics 2016年第3期65卷 266-272页

作者： r.pakniat M.K.Tavassoly M.H.Zandi Faculty of Physics Shahid Bahonar University of Kerman Atomic and Molecular Group Faculty of PhysicsYazd University Photonic research Group Engineering Research CenterYazd University The Laboratory of Quantum Information Processing Yazd University

In this paper we have studied the dynamical evolution of Shannon information entropies in position and momentum spaces for two classes of（nonstationary） atom-field entangled states,which are obtained via the JaynesCummings model and its *** have focused on the interaction between two- and（1）-type three-level atoms with the single-mode quantized *** three-dimensional plots of entropy densities in position and momentum spaces are presented versus corresponding coordinates and time,*** is observed that for particular values of the parameters of the systems,the entropy squeezing in position space ***,we have shown that the well-known BBM（Beckner,Bialynicki-Birola and Mycielsky） inequality,which is a stronger statement of the Heisenberg uncertainty relation,is properly satisfied.

关键词： Shannon information entropy entropy squeezing BBM inequality Jaynes-Cummings model

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A novel scheme of hybrid entanglement swapping and teleportation using cavity QED in the small and large detuning regimes and quasi-Bell state measurement method

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Chinese Physics B 2016年第10期25卷 45-51页

作者： r.pakniat M K Tavassoly M H Zandi Faculty of Physics Shahid Bahonar University of Kerman Faculty of Physics Atomic and Molecular Group Yazd University research Group of Optics and Photonics Yazd University

We outline a scheme for entanglement swapping based on cavity QED as well as quasi-Bell state measurement(quasiBSM) methods. The atom–field interaction in the cavity QED method is performed in small and large detuning *** assume two atoms are initially entangled together and, distinctly two cavities are prepared in an entangled coherent–coherent state. In this scheme, we want to transform entanglement to the atom-field system. It is observed that, the fidelities of the swapped entangled state in the quasi-BSM method can be compatible with those obtained in the small and large detuning regimes in the cavity QED method(the condition of this compatibility will be discussed). In addition, in the large detuning regime, the swapped entangled state is obtained by detecting and quasi-BSM approaches. In the continuation,by making use of the atom–field entangled state obtained in both approaches in a large detuning regime, we show that the atomic as well as field states teleportation with complete fidelity can be achieved.

关键词： entanglement swapping quantum teleportation cavity QED quasi-Bell state measurement

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一种用来预测岩石蠕变的流变硬化新模型

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地壳构造与地壳应力 2015年第2期 9-15页

作者： M.Karami A. Fahimifar E. pakniat 许俊闪陈连旺 Department of Civil and Environmental Engineering Amirkabir University of Technology Tehran Iran Department of Civil Engineering Shahid-Bahonar University Kerman Iran 不详

在岩石和岩体中，从较低的应力一直到接近强度峰值的高应力，都可能会出现时效变形。大多数类型的岩石，特别是软岩，在相当大的应力范围内，可逆的应变和不可逆的蠕变应变都同时存在。所以，需要一种可同时计算弹性应变和塑性蠕变应变... 详细信息

在岩石和岩体中，从较低的应力一直到接近强度峰值的高应力，都可能会出现时效变形。大多数类型的岩石，特别是软岩，在相当大的应力范围内，可逆的应变和不可逆的蠕变应变都同时存在。所以，需要一种可同时计算弹性应变和塑性蠕变应变的本构模型。本文采用岩土材料的硬化行为概念，提出了一种新的弹塑性一粘塑性硬化模型。对于短期瞬态变形，该模型具有非线性弹塑性硬化特点。该模型的非线性与当前围压相关，并且其硬化特性服从莫尔．库仑破裂准则。另一方面，对于延迟变形，粘塑性硬化元是用一个摩擦硬化摩尔．库仑滑块和一个黏壶并联而成。粘塑性硬化元被连接到一系列普通的粘弹性开尔文模型中。因此，可以得到长期变形的弹性。粘塑性硬化模型。我们把该模型的方程通过内置的FISH语句植入到数值有限差分代码（FLAC）中，然后应用到如文献所述的一系列的三轴和单轴测试试验中。我们通过对不同应力下瞬态变形和蠕变变形的预测检验了模型的潜在应用性。本文还针对数值结果和样品测试结果作了对比性讨论。

关键词：本构模型硬化模型岩石蠕变预测检验流变种用蠕变应变塑性硬化

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Ankylosing spondylitis: A state of the art factual backbone

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World Journal of radiology 2015年第9期7卷 236-252页

作者： Mohammad Ghasemi-rad Hosam Attaya Emal Lesha Andrea Vegh Tooraj Maleki-Miandoab Emad Nosair Nariman Sepehrvand Ali Davarian Hamid rajebi Abdolghader.pakniat Seyed Amirhossein Fazeli Afshin Mohammadi Division of Inter-ventional radiology Massachusetts General Hospital Harvard Medical School Harvard--MIT Division of Health Sciences and Technology Mass-achusetts Institute of Technology College of Science and Mathematics University of Massachusetts Boston Department of Materials Science and Engineering Faculty of Applied Science and Engineering University of Toronto Department of radiology Urmia University of Medical Sciences Anatomical Sciences Basic Medical Sciences Department College of Medicine Sharjah University Department of Medicine University of Alberta Ischemic Disorders research Center Golestan University of Medical Sciences radiology Department SUNY Upstate Medical University Department of Emergency Medicine Arak University of Medical Science Department of Medicine Zahedan University of Medical Sciences Solid Tumor research Center Imam Khomaini Hospital University of Medical Sciences

Ankylosing spondylitis(AS) is a chronic inflammatory disease that affects 1% of the general population. As one of the most severe types of spondyloarthropathy, AS affects the spinal vertebrae and sacroiliac joints, causing debilitating pain and loss of mobility. The goal of this review is to provide an overview of AS, from the pathophysiological changes that occur as the disease progresses, to genetic factors that are involved with its onset. Considering the high prevalence in the population, and the debilitating life changes that occur as a result of the disease, a strong emphasis is placed on the diagnostic imaging methods that are used to detect this condition, as well as several treatment methods that could improve the health of individuals diagnosed with AS.

关键词： Ankylosing spondylitis Magnetic resonance imaging

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