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Teleportation of unknown states of a qubit and a single-mode field in strong coupling regime without Bell-state measurement

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Communications in Theoretical Physics 2023年第2期75卷 73-79页

作者： f Jahanbakhsh m K Tavassoly Optics and Laser Group Faculty of PhysicsYazd UniversityYazd 89195-741Iran

In this paper,we develop the teleportation scheme in[Zheng in Phys Rev A 69,064302,2004],in the sense that,we work in the strong atom.f.eld coupling regime wherein the rotating wave approximation(RWA)is no longer *** achieve the purpose,a scheme consisting of a qubit interacting with a single-mode quantized field is described via the Rabi model(counter rotation terms are taken into account).Our first aim is to teleport an unknown atomic state of a qubit(which interacts with the quantized field in a cavity)to a second qubit(exists in another distant cavity field),beyond the RWA and without the Bell-state measurement *** the continuation,in a similar way,we teleport an unknown state of a single-mode field *** fact,it is shown that,in this regime,after applying some particular conditions,containing the interaction time of atom.f.eld in the cavities,adjusting the involved frequencies,as well as the atom.f.eld coupling in the model,if a proper measurement is performed on the state of the first qubit(the related field in the cavity),the unknown states of the qubit(field)can be teleported from the first qubit(cavity field)to the second qubit(cavity field),*** show that in both considered cases,the teleportation protocol is successfully performed with the maximum possible fidelity,1,and the acceptable success probability,0.25.

关键词： strong atom.f.eld coupling Rabi model quantum teleportation success probability fidelity

Circularly polarized luminescence of enantiopure carboline-based europium cryptates under visible light excitation

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Journal of Rare Earths 2020年第5期38卷 564-570页

作者： Carolin Dee francesco Zinna Elisabeth Kreidt Lorenzo Arrico Aurora Rodriguez-Rodriguez Carlos Platas-Iglesias Lorenzo Di bari michael Seitz University of Tübingen Institute of Inorganic ChemistryAuf der Morgenstelle 1872076TubingenGermany Dipartimento di Chimica e Chimica Industriale Universita di PisaVia Moruzzi 1356124PisaItaly Centro de Investigacions Cientificas Avanzadas(CICA)and Departamento de Quimica Universidade da CorunaCampus da Zapateira-Rua da Fraga 1015008A CorunaSpain

The enantiomers of carboline-based cryptates were successfully resolved by chiral *** complexes show high configurational stability under harsh conditions and their absolute configuration was determined by comparing theoretical and expe rimental electronic circular dichroism *** e nantiopure cryptates exhibit strong circularly polarized luminescence with a maximum dissymmetry factor glum=0.25 for the f-f transition 5 D0→7 f1(λ=594 nm)under visible light excitation atλgx=400 nm.

关键词： molecular lanthanoid complexes Lanthanoid luminescence Chirality Circularly polarized luminescence(CPL) Carboline Cryptates

Interactive data styling and multifocal visualization for a multigrid web-based Digital Earth

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International Journal of Digital Earth 2021年第3期14卷 288-310页

作者： m.J.Sherlock m.Hasan f.f.Samavati Department of Computer Science University of CalgaryCalgaryCanada

Globe-based Digital Earth(DE)is a promising system that uses 3D models of the Earth for integration,organization,processing,and visualization of vast multiscale geospatial *** growing size and scale of geospatial datasets present significant obstacles to interactive viewing and meaningful visualizations of these DE *** address these challenges,we present a novel web-based multiresolution DE system using a hierarchical discretization of the globe on both server and client *** presented web-based system makes use of a novel data encoding technique for rendering large multiscale geospatial datasets,with the additional capability of displaying multiple simultaneous *** the data needed for the current views and scales are encoded and *** leverage the power of GPU acceleration on the client-side to perform real-time data rendering and dynamic *** rendering of multiple views allows us to support multilevel focus+context visualization,an effective approach to navigate through large multiscale global *** client–server interaction as well as the data encoding,rendering,styling,and visualization techniques utilized by our presented system contribute toward making DE more accessible and informative.

关键词： Digital Earth Discrete Global Grid System data integration data fusion multilevel focus+context visualization spatial resolution context awareness

modified Burzynski criterion with non-associated flow rule for anisotropic asymmetric metals in plane stress problems

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Applied mathematics and mechanics(English Edition) 2015年第3期36卷 303-318页

作者： f.mOAYYEDIAN m.KADKHODAYAN Department of mechanical Engineering Ferdowsi University of Mashhad

The Burzynski criterion is developed for anisotropic asymmetric metals with the non-associated flow rule （NAfR） for plane stress problems. The presented pressure depending on the yield criterion can be calibrated with ten experimental data, i.e., the tensile yield stresses at 0°, 45°, and 90°, the compressive yield stresses at 0°, 15°, 30°, 45°, 75°, and 90° from the rolling direction, and the biaxial tensile yield stress. The corresponding pressure independent plastic potential function can be calibrated with six experimental data, i.e., the tensile R-values at 0°, 15°, 45°, 75°, and 90° from the rolling direction and the tensile biaxial R-value. The downhill simplex method is used to solve these ten and six high nonlinear equations for the yield and plastic potential functions, respectively. The results show that the presented new criterion is appropriate for anisotropic asymmetric metals.

关键词： modified Burzynski criterion pressure dependent asymmetric metal down-hill simplex method non-associated flow rule (NAfR)

A passive-biped model with multiple routes to chaos

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Acta mechanica Sinica 2011年第2期27卷 277-284页

作者： f. farshimi m. Naraghi Department of mechanical Engineering Amirkabir University of Technology Tehran Iran

This paper presents a new passive-biped model consisting of a simplest walking model beneath an upper body, with no kinematic constraint. The upper body is attached to the legs with a linear torsional spring. The model is a passive dynamic walker, so it walks down a slope without energy input. The governing equations of motion are derived and simulated for the parameter analysis purposes. Simulation results reveal some different routes to chaos that have not been observed in previous models.

关键词： Passive-biped Routes to chaos Upper body Bifurcation

Synthesis and Crystal Structure of a New Potassium Yttrium Diphosphate Dihydrate KYP_2O_7·2H_2O

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Chinese Journal of Structural Chemistry 2008年第10期27卷 1199-1204页

作者： férid m Horchani-Naifer K Unité de Recherches de matériaux de Terres Rares Centre National de Recherches en Sciences des MatériauxB.P.95 Hammam-Lif 2050Tunisie

The dihydrated potassium yttrium diphosphate, KYP2O7·2H2O, has been synthesized for the first time. Single-crystal XRD study has allowed the determination of its structure and correct formula. It crystallizes in the monoclinic system, space group P21/c, with the cell parameters a = 7.7069（3）, b = 10.5801（4）, c = 10.0204（5）A,β = 93.24（3）A, V= 815.76（6）A^3, Z= 4, mr = 337.98, f（000） = 656, Dc = 2.752 g/cm^3 and/t = 8.073 mm^-1. The single-crystal structure was solved from 1856 unique reflections with the final R = 0.0365 and wR = 0.0772, refined with 119 parameters. The atomic arrangement of KYP2O7·2H2O is built by the P2O7 groups, the YO7 and the KO10 polyhedrons which are connected by corner and edge-sharing to form a three-dimensional framework. Water molecules are directly bonded to the Y and K atoms, and they are located in channels running along the a direction.

关键词： crystal structure yttrium diphosphate infrared spectrum TGA-DTA analysis

Experimental Investigation of Separation and Transition Processes on a High-Lift Low-Pressure Turbine Profile Under Steady and Unsteady Inflow at Low Reynolds Number

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Journal of Thermal Science 2010年第1期19卷 26-33页

作者： Satta f Simoni D Ubaldi m Zunino P Bertini f DImSET-Università di Genova Via Montallegro 1I-16145 GenovaItaly Avio R&D V.I Maggio99 I-10040 Rivalta(TO)-Italy

The effects induced by the presence of incoming wakes on the boundary layer developing over a high-lift low-pressure turbine profile have been investigated in a linear cascade at *** tested Reynolds number is 70000,typical of the cruise operating *** results of the investigations performed under steady and unsteady inflow conditions are *** unsteady investigations have been performed at the reduced frequency of f+=0.62,representative of the real engine operating *** aerodynamic loadings as well as boundary layer velocity profiles have been measured to survey the separation and transition *** analysis has been also performed to better understand the phenomena associated with the transition process under steady *** the unsteady case,a phase-locked ensemble averaging technique has been employed to reconstruct the time-resolved boundary layer velocity distributions from the hot-wire instantaneous signal *** ensemble-averaging technique allowed a detailed analysis of the effects induced by incoming wakes-boundary layer interaction in separation ***-resolved results are presented in terms of mean velocity and unresolved unsteadiness time-space plots.

关键词： boundary layer separation boundary layer transition wake-boundary layer interaction high-liftprofile low-pressure turbine

The viscous strip approach to simplify the calculation of the surface acoustic wave generated streaming

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Applied mathematics and mechanics(English Edition) 2024年第4期45卷 711-724页

作者： f.JAZINI DORCHEH m.GHASSEmI fuel Cells and Nano Systems(fCNS)Laboratory Department of Mechanical EngineeringK.N.Toosi University of TechnologyTehran 19697Iran

In recent decades,the importance of surface acoustic waves,as a biocompatible tool to integrate with microfluidics,has been proven in various medical and biological *** numerical modeling of acoustic streaming caused by surface acoustic waves in microchannels requires the effect of viscosity to be considered in the equations which complicates the *** this paper,it is shown that the major contribution of viscosity and the horizontal component of actuation is concentrated in a narrow region alongside the actuation *** the inviscid equations are considerably easier to solve,a division into the viscous and inviscid domains would alleviate the computational load *** particles'traces calculated by this approximation are excellently alongside their counterparts from the completely viscous *** is also shown that the optimum thickness for the viscous strip is about 9-fold the acoustic boundary layer thickness for various flow patterns and amplitudes of actuation.

关键词： surface acoustic wave microfluidics numerical simulation particle tracing acoustic streaming

Transportation of heat through Cattaneo-Christov heat flux model in non-Newtonian fluid subject to internal resistance of particles

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Applied mathematics and mechanics(English Edition) 2020年第8期41卷 1157-1166页

作者： m.I.KHAN f.ALZAHRANI Department of mathematics Riphah International UniversityFaisalabad 38000Pakistan Nonlinear Analysis and Applied mathematics(NAAm)-Research Group Department of MathematicsFaculty of SciencesKing Abdulaziz UniversityJeddah 21589Saudi Arabia

Thermal conduction which happens in all phases(liquid,solid,and gas)is the transportation of internal energy through minuscule collisions of particles and movement of electrons within a working *** colliding particles comprise electrons,molecules,and atoms,and transfer disorganized microscopic potential and kinetic energy,mutually known as the internal *** engineering sciences,heat transfer comprises the processes of convection,thermal radiation,and sometimes mass ***,more than one of these procedures may happen in a given *** use the Cattaneo-Christov(CC)heat flux model instead of the fourier law of heat conduction to discuss the behavior of heat transportation.A mathematical model is presented for the Cattaneo-Christov double diffusion(CCDD)in the flow of a non-Newtonian nanofluid(the Jeffrey fluid)towards a stretched *** magnetohydrodynamic(mHD)fluid is *** behaviors of heat and mass transportation rates are discussed with the *** models are based on fourier’s and fick’s *** convective transportation in nanofluids is discussed,subject to thermophoresis and Brownian *** nonlinear governing flow expression is first altered into ordinary differential equations via appropriate transformations,and then numerical solutions are obtained through the built-in-shooting *** impact of sundry flow parameters is discussed on the velocity,the skin friction coefficient,the temperature,and the concentration *** is reported that the velocity of material particles decreases with higher values of the Deborah number and the ratio of the relaxation to retardation time *** temperature distribution enhances when the Brownian motion and thermophoresis parameters *** concentration shows contrasting impact versus the Lewis number and the Brownian motion *** is also noticed that the skin friction coefficient decreases when the ratio of the relaxation to retarda

关键词： Cattaneo-Christov double diffusion(CCDD) non-Newtonian fluid model(Jeffrey model) viscous dissipation magnetohydrodynamic(mHD) Brownian diffusion thermophoresis diffusion