Loading...
NianQi Search
Quick Search
Advanced Search
Toggle navigation
Home
About Journal
Editorial Board
Instruction
History
Indexed in
Subscription
Contact Us
中文
Office
Office
Submission/Manuscript
Peer Review
Editor Work
Office Work
Editor-in-Chief
Journal
Just Accepted
Current Issue
Archive
Advanced Search
Most Read
Most Download
E-mail Alert
RSS
Wechat
Table of Content
20 August 2013 Volume 32 Issue 8
著者文摘
The Wigner functions of neutral particles with structure in an external electromagnetic field
. 2013, 32(8): 1-1.
Abstract
(
690
)
PDF
(489KB) (
327
)
Related Articles
|
Metrics
The Wigner functions play a significant role in quantum mechanics, quantum optics, thermodynam- ics and quantum statistics. Therefore, it has high research value to investigate the Wigner functions for neutral par- ticles with structure that moving in an external electromagnetic field. In this paper, first, we introduce the proper- ties and application of Wigner function. Then, we provide the Hamihonian of the polarized atom using the symmet- ric gauge. At last, by using Bopp shift, we solve the energy eigenvalue equation With the Moyal-Weyl star product, and obtain the energy levels and Wigner functions of the neutral particles in an external electromagnetic field.
Function of calculation software in the computational physics course
. 2013, 32(8): 6-6.
Abstract
(
946
)
PDF
(648KB) (
673
)
Related Articles
|
Metrics
Calculation software such as MATLAB is an advanced programming language to learn computational physics course. Textbook should introduce how to learn calculation software and update computational physics text-books constantly.
Condition of a mercury drop showing sphericity on a desktop
. 2013, 32(8): 12-12.
Abstract
(
732
)
PDF
(255KB) (
544
)
Related Articles
|
Metrics
The condition of a mercury drop showing sphericity on a desktop is studied by using the model of spberoid and principle of minimum potential energy. It concludes that its radius is less than one fifth of its capillaryconstant.
Simple solving for the lateral vibration of a flexible cable supported at the upper end
. 2013, 32(8): 15-15.
Abstract
(
634
)
PDF
(258KB) (
407
)
Related Articles
|
Metrics
Small lateral vibration of a flexible cable supported at the upper end is studied. First, a mathemati- cal model for describing the lateral vibration of a flexible cable supported at the upper end is established. Second, the exact analytical solution of the model, which satisfies the given boundary and initial conditions, is obtained by using a simple hypothesis method.
The microscopic explanation of Ampere force in the relativistic approximation
. 2013, 32(8): 17-17.
Abstract
(
1152
)
PDF
(361KB) (
1006
)
Related Articles
|
Metrics
According to the microscdpic explanation of Ampere force in the traditional physics textbooks, a consequent question came from whether exists a certain inertial references system in which two relatively static homo -charges will attract each other. In order to find this, the Lorentz force formula in the relativistic approximation is firstly deduced, and then which is applied to the calcuiation of the electromagnetic force between two motion char- ges which are relative to each other stationary. Our results demonstrate that the attraction phenomenon between two relative static homo-charges should not occur in anyone inertial references system. By considering the influence of the equivalent opposite sign charges on the interaction force between two electricity metal conductors, a more com- prehensive microscopic explanation of Ampere force is proposed.
The electric field of charged cylinder inside a grounding party conductor drum
. 2013, 32(8): 21-21.
Abstract
(
671
)
PDF
(315KB) (
437
)
Related Articles
|
Metrics
An approximate solution of drum i ted by s obtained by using numerical confo using mathematical software ＂MAT the electric field of a charged cylinder inside a grounding party conductor rmal mapping, and the equipotential line and electric line maps are plot- LAB＂.
Some methods to calculate the potential at the brim of a uniformly charged nonconducting circular plate
. 2013, 32(8): 24-24.
Abstract
(
1379
)
PDF
(426KB) (
1281
)
Related Articles
|
Metrics
Some methods to calculate the potential at the brim of a uniformly charged nonconducting circular plate, including analytical and numerical methods, are discussed.
The electric field distribution of arbitrary triangle line charge
. 2013, 32(8): 29-29.
Abstract
(
869
)
PDF
(848KB) (
308
)
Related Articles
|
Metrics
By obtaining the electric field distribution duced by other two charged sides by using the vector field field distribution in the entire space with the principle of of one side of triangle, we derive the electric field pro- rotational operation. Furthermore, we present the electric superposition of the field.
The equivalent electromagnetic parameters of metamaterials derived from RLC series resonant circuit
. 2013, 32(8): 32-32.
Abstract
(
619
)
PDF
(285KB) (
297
)
Related Articles
|
Metrics
The equivalent permittivity and permeability of metamaterials can be generated by the interaction of electromagnetic waves with specific metal structured cell array. Using the unified description of the interaction by RLC series resonant circuit, we conclude that both the real part of the equivalent permittivity and permeability are negative when the incident wave frequency is greater but close to the resonant frequency; and the imaginary parts of them are positive in any case.
Investigate on Hamiltonian spectrum for two coupled harmonic oscillators
. 2013, 32(8): 35-35.
Abstract
(
674
)
PDF
(486KB) (
583
)
Related Articles
|
Metrics
By calculating the Hamiltonian spectra of harmonic oscillators of five kinds： non-coupling reso- nance, non-coupling and coordinate coupling composed resonance, non-coupling and momentum coupling reso- nance, non-coupling and coordinate momentum crossed coupling resonance. Based on the analysis comparison, we have found the following results： first, for the existence of energy level difference which contained non-commuta- tion parameters, when non-commutation parameters are equal to zero, energy level difference which calculated is similar to energy level difference of harmonic oscillators for non coupling resonance, so as to demonstrate the validi- ty of the results ; second it shows that the coupling coefficient of coordinates, the coupling coefficient of momentum and the coefficient of compressibility are influence to energy level difference of harmonic oscillators ; third, for coor- dinate momentum crossed coupling resonance, coupling coefficient of coordinate and momentum which crossed has no effect on energy level difference of harmonic oscillators. A variety of coupled harmonic oscillator spectrum are calculated, the research is wide and comprehensive analysis.
Analysis of experimental methodologies for the measurement of the thickness of saponaceous-films using Michelson interferometer
. 2013, 32(8): 41-41.
Abstract
(
1045
)
PDF
(726KB) (
770
)
Related Articles
|
Metrics
The thickness of saponaceous-films is measured by using a Michelson interferometer with the white- light used for interference. Detailed study has been made for the influence of the number of layers of the films used on the interference pattern obtained, and the influence of the distinguishability of the zero-order interference stripe on the film thickness measured. With the widths of the interference stripes kept constant, measurements obtained with varies numbers of saponaceous-film layers are compared ; Meanuhile, comparison of the measurements obtained with a constant number of layer but different widths of interference stripes are also carried out. The thickness at the centre of the films are calculated based on the data obtained, and the mechanisms causing the uncertainty of meas- urements in different measurement conditions are comparatively analyzed. In results, monolayer and double layers of saponaceous-films are more suitable for the measurement with relatively wider interference stripes. In contrast, a four-layer film system suits more for that using more narrow interference stripes.
Investigation on neutrino
. 2013, 32(8): 46-46.
Abstract
(
725
)
PDF
(650KB) (
927
)
Related Articles
|
Metrics
This paper investigates history of neutrino oscillation through neutrino oscillation theory, neutrino os- cillation experiment and neutrino oscillation parameter measurement. The great achievement of neutrino experiments in Chinese Dayawan is introduced.
Trajectory of intersected rolling discs
. 2013, 32(8): 52-52.
Abstract
(
656
)
PDF
(263KB) (
325
)
Related Articles
|
Metrics
Two symmetric intersected discs roll without slipping on a plane. The coordinates of center of mass and the rotation matrix are given. The relation of space period and intersected angle is discussed. The trajectories of contact point and midpoint of intersected segment are plotted.
Experimental Research on ＂Half-wave Loss＂
. 2013, 32(8): 54-54.
Abstract
(
1104
)
PDF
(1572KB) (
580
)
Related Articles
|
Metrics
： The ＂half-wave loss＂ phenomenon is directly ning the ＂light and dark＂ inteIfcrence fringes. Based on the shown by changing the interface medium and obtai- deduced distribution equation of interference pattern and the experimental data, we analyze quantitatively this phenomenon according to the calculation of the additional optical path difference produced by reflections on different medium surface. Moreover, the ＂half-wave loss＂ phe- nomenon is illustrated from another point of view by simulating the experimental results in the light of distribution e- quation of interference pattern.
Just Accepted
