Teleportation of an arbitrary mixture of diagonal states of multiqudit

This paper proposes a scheme to teleport an arbitrary mixture of diagonal states of multiqutrit via classical correlation and classical communication. To teleport an arbitrary mixture of diagonal states of N qutrits, N classically correlated pairs of two qutrits are used as channel. The sender （Alice） makes Fourier transform and conditional gate （i.e., XOR（3） gate） on her qutrits and does measurement in appropriate computation bases. Then she sends N ctrits to the receiver （Bob）. Based on the received information, Bob performs the corresponding unitary transformation on his qutrits and obtains the teleported state. Teleportation of an arbitrary mixture of diagonal states of multiqudit is also discussed.     

Sheath Structure of an Electronegative Plasma

We investigate the sheath structure of an electronegative plasma at steady state with the assumptions of cold positive ions and hot negative ions. The modified Bohm criterion is obtained with the Sagdeev potential by introducing a modified ion sound velocity. At the same time the electric potential, net space charge and particles densities in the sheath are analysed in several cases of different temperature ratios of electrons to negative ions and different density ratios of negative ions to positive ions.     

Measurement of rectangular surface mobility of an infinite plate

1 IntroductionIn the investigations of vibration control, the concept of mobility or impedance is oftenused. Mobility involves the parameters of force and velocity. Thus it can be easily employed toinvestigate the response of the excited structures and power transmission between the structtires.In classical methods of studys the contact area) over which the force and the response are applied,between two connected sub- structures is considered as a point when the mobility is calculated.However…     

Numerical Simulation of the Response of an Aluminum Target Impacted by an Intense Laser Driven Flyer

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　　Ｔｈｅｉｍｐａｃｔｔｅｃｈｎｉｑｕｅｏｆｆｌｙｅｒｄｒｉｖｅｎｂｙｃｈｅｍｉｃａｌｅｘｐｌｏｓｉｖｅａｎｄｇａｓｇｕｎｈａｓｂｅｅｎｕｓｅｄｔｏｓｔｕｄｙｈｉｇｈ ｐｒｅｓｓｕｒｅｅｑｕａｔｉｏｎ ｏｆ ｓｔａｔｅ (ＥＯＳ)ｆｏｒｍａｎｙｙｅａｒｓ[1] .Ｂｅｃａｕｓｅｔｈｅｆｌｙｅｒｉｓａｔａｌｏｗｅｎｅｒｇｙｄｅｎｓｉｔｙａｎｄｅｎｔｒｏｐｙｅｎｈａｎｃｅｍｅｎｔｓｔａｔｅｉｎｔｈｉｓｃａｓｅ ,ｉｔｃａｎｅａｓｉｌｙｒｅｃｏｖｅｒｉｔｓｉｎｉｔｉａｌｓｔａｔｅｂｅｆｏ…     

On hydrodynamic interpretation of folding of an α-helical protein

Using the method of molecular dynamics, the simulation of folding of an α-helical protein from the unfolded to compact and functional (native) state is performed. The protein folding is interpreted as a stationary motion of a compressible “folding fluid”. It is shown that the densities of folding fluxes obey the same similarity relations as the velocities of an incompressible fluid in the Kolmogorov’s turbulence theory, except that instead of the rate of change of kinetic energy per mass unit, the rate of change of flux variance per volume unit plays the role of the key parameter.     

Band Gaps of an Amorphous Photonic Materials

A new kind of amorphous photonic materials is presented.Both the simulated and experimental results show that although the disorder of the whole dielectric structure is strong,the amorphous photonic materials have two photonic gaps.This confirms that the short-range order is an essential factor for the formation of the photonic gaps.     

Probabilistic teleportation of an arbitrary three-particle state

A scheme for teleporting an arbitrary and unknown three-particle state from a sender to either one of two receivers is proposed. The quantum channel is composed of a two-particle non-maximally entangled state and two three-particle non-maximally entangled W states. An arbitrary three-particle state can be perfectly teleported probabilistically if the sender performs three generalized Bell-state measurements and sends to the two receivers the classical result of these measurements, and either one of the two receivers adopts an appropriate unitary transformation conditioned on the suitable measurement outcomes of the other receiver. All kinds of unitary transformations are given in detail.     

Propagation of Light in an Ensemble of Tripod Level Atoms

We study the propagation of a quantum probe light in an ensemble of tripod level atoms when the atoms are coupled to two other classical control fields. First we calculate the dispersion properties, such as susceptibility and group velocity, of the probe light within such an atomic medium under the case of three-photon resonance via the dynamical algebra method of collective atomic excitations. Then we calculate the dispersion of the probe light in the case that two classical control fieMs have the different detunings to the relative atomic transitions. Our results show that in both cases the phenomenon of electromagnetically induced transparency can occur. Especially under the second case, we can find two transparency windows for the probe light.     

Experimental Investigation of an L-Shaped Very-Small-Aperture Laser

An L-shaped very-small-aperture laser （VSAL） with high power output and field enhancement effect is fabricated and characterized. As a comparison, a conventional rectangular VSAL and a double-aperture VSAL containing one L-aperture and one rectangular aperture are also fabricated and measured. The confined optical fields in the vicinity of apertures of VSAL are detected using an apertured near-field scanning optical microscope. The experimental results reveal that the power output from the L-shaped VSAL increases about 13 times than the rectangular VSAL with a comparable aperture area. It is indicated that the L-shaped VSAL has strong power output enhancement effect. The near-field distribution of the double-aperture VSAL indicates that the L-aperture has the field confinement and enhancement effect stronger than the rectangular aperture.     

Study of terahertz pulses at an edge

The propagation behaviour of terahertz(THz)pulses at an edge is characterized.The phenomenon that the amplitude oscillates periodically in the frequency spectrum is similar to Young's interference,if the absorption effect is neglected.The oscillation cycle is shorter for a thicker sample.THz pulses at an edge are analyzed by the broadband Huygens-Fresnel diffraction integral.The experimental results are in agreement with the simulation results approximately.The simulation errors are also analyzed.     

Detection of an α-Muonium-substituted methyl radical

Mössbauer spectroscopic and magnetic measurements have been made on a novel magnetic protein produced by the controlled reconstitution of ferritin. The data indicate that the predominant mineral form in the iron-containing cores is maghemite (-Fe₂O₃) rather than magnetite (Fe₃O₄).     

Mechanism of Intramolecular Transfer of a Proton and an Electron in an Excited State of 4′‐Amine Derivatives of 3‐Hydroxyflavone

The intramolecular transfer of a proton in 4amine derivatives of 3hydroxyflavone was investigated in binary solvents, which are a mixture of polar and nonpolar liquids. The dependence of the efficiency of the intramolecular transfer of a proton in an excited state on the frequency of the exciting light has been revealed, which is due to the spectral inhomogeneity of the molecules of fluorophors in binary solvents. A scheme of the processes of intramolecular transfer of a proton and an electron in 4amine derivatives of 3hydroxyflavone is suggested.     

Macro-Behaviour of Agents＇ Opinion under Influence of an External Field

We propose a model to study the evolution of opinion under the influence of all external field on small world network. The maero-behaviour of agents＇ opinion and the relative change rate as time elapses are studied. The external field is found to play an important role in making the opinion s（t） balance or increase, and without the influence of the external field, the relative change rate γ（t） shows nonlinear increasing behaviour as time runs. What is more, this nonlinear increasing behaviour is independent of the initial condition, the strength of the external field and the time that we cancel the external field. The results may reflect some phenomena in our society, such as the function of the macro-control in China or the mass media in our society.     

Performance of an Accelerometer Suspended by a Pendulum

Performances of an accelerometer suspended by a pendulum and set on ground directly are both discussed. Theoretical analysis shows that the isolation from seismic disturbances of such a suspending accelerometer is equal to that of a narrow band-pass electronic filter. This means that the effect of seismic noises to the accelerometer can be substantially suppressed by means of a pendulum suspension during its performance tests.     

Unpredictability of Iteration Destination in an Integrate-and-Fire Circuit

Based on our previous study that discovered a new mechanism of the riddled-like basin appearance in piecewise continuous and noninvertible links of two conservative mappings, and the mechanism being the mixing of different attraction basins on a fat-fractal set, which was addressed as the forbidden region net [Phys. Rev. E 72 （2005） 025201（R）], we show numerically that the riddled-like attraction basins and the new mechanism appear in an integrate-and-fire circuit that can be described by piecewise continuous and noninvertible links of two dissipative mappings. This leads to the fact that vast increase of the precision of the initial condition results in practically no improvement in predictability of the iteration destination. Predictability is usually characterized by examining how error probability in the prediction, f（ε）, scales with the precision ε under the initial condition. Typically, f（ε） - ε^α with 0 ≤ α ≤ 1 being the uncertainty exponent. For riddled-like basins, a should be zero, which is in good agreement with the numerical simulation results.     

Effects of bias on dynamics of an AC-driven two-electron quantum-dot molecule

The effects of bias on the dynamical localization of two interacting electrons in a pair of coupled quantum dots driven by external AC fields have been numerically investigated. With an effective two-site model and Floquet formalism,the time-dependent Schroedinger equation is numerically solved and the Pmin, the minimum of the population evolution of the initial state within a certain time period, is used to quantify the degree of the dynamical localization. Results indicate that the bias can change the energy of the initial state and break the dynamical symmetry of the system with a pure AC field. And the amplitude of the AC field with dynamical localization phenomenon changes with bias. All the numerical results are explained by the perturbation theory and two-level approximation.     

Electric Voltage Tuning of an All-fiber Mach-Zehnder Interferometer

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　　ＴｈｅｃｏｎｖｅｎｔｉｏｎａｌＭａｃｈ Ｚｅｈｎｄｅｒｉｎｔｅｒｆｅｒｏｍｅｔｅｒｉｓａｎｉｍｐｏｒｔａｎｔｄｉａｇｎｏｓｔｉｃｔｏｏｌ.Ｆｒｅｑｕｅｎｔｌｙｕｓｅｄｉｎｔｈｅｆｉｅｌｄｓｏｆｐｌａｓｍａｐｈｙｓｉｃｓ,ａｅｒｏｄｙｎａｍｉｃｓ,ａｎｄｈｅａｔｔｒａｎｓｆｅｒｆｏｒｍｅａｓｕｒｉｎｇｄｅｎｓｉｔｙ ,ｐｒｅｓｓｕｒｅ ,ａｎｄｔｅｍｐｅｒａｔｕｒｅｃｈａｎｇｅｓｉｎｇａｓｅｓ.Ｂｅｃａｕｓｅｏｆｉｔｓｒｅｌａｔｉｖｅｌｙｌａｒｇｅａｎｄｆｒｅｅｌｙａｃｃｅｓ…     

Measurement of the yields of positively charged particles at an angle of 35° in proton interactions with nuclear targets at an energy of 50 GeV

Momentum spectra of cumulative particles in the region of high transverse momenta (P _T ) in pA → h ⁺ + X reactions were obtained for the first time. The experiment in which this was done was performed at the SPIN setup (Institute for High Energy Physics, Protvino) in a beam of 50-GeV protons interacting with C, Al, Cu, and W nuclei. Positively charged particles were detected at a laboratory angle of 35° and in the transverse-momentum range between 0.6 and 3.7 GeV/c. A strong dependence of the particle-production cross section on the atomic number was observed. A comparison with the results of calculations based on the HIJING and UrQMD models was performed in the subcumulative region.     

The discovery of polyacetylene film – the dawning of an era of conducting polymers

This lecture is not directly related to our discovery and development of conducting polymers to which the Nobel Prize in Chemistry 2000 was awarded. However, I would like to present my previous work that I had carried out just before we reached the discovery of chemical doping. I do hope my talk will be of use for you the audience to deepen your understandings by learning what had happened before and how we did reach the idea of chemical doping.     

Can an electric field induce an antiferroelectric phase out of a ferroelectric phase?

It has been widely accepted that electric fields favor the ferroelectric phase with parallel electric dipoles over the antiferroelectric phase. With detailed measurements in polycrystalline ceramics of Pb(0.99)Nb(0.02[(Zr(0.57)Sn(0.43)(1-y)Ti(y)](0.98)O(3), we demonstrate in this Letter that electric fields can induce an antiferroelectric phase out of a ferroelectric phase, i.e., trigger an apparently unlikely ferroelectric-to-antiferroelectric phase transition. We suggest that it is caused by the volume contraction from the converse piezoelectric effect at the coercive field with a reversed polarity.