搜索结果: 1-14 共查到“电子物理学 particle”相关记录14条 . 查询时间(0.108 秒)
Particle's drift in self-similar billiards
self-similar billiards asymptotic distribution
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2015/9/29
We study a particle moving at unit speed in a channel made by
connected self-similar billiard tables that grow in size by a factor r > 1
from left to right (this model was recently introduced in phy...
Goldilocks principle wrong for particle assembly: Too hot and too cold is just right（图）
cold right particle
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2014/12/1
Microscopic particles that bind under low temperatures will melt as temperatures rise to moderate levels, but re-connect under hotter conditions, a team of New York University scientists has found. Th...
Princeton scientists observe elusive particle that is its own antiparticle
antiparticle Princeton scientists
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2014/10/9
Princeton University scientists have observed an exotic particle that behaves simultaneously like matter and antimatter, a feat of math and engineering that could eventually enable powerful computers ...
In situ variability of mass-specific beam attenuation and backscattering of marine particles with respect to particle size, density, and composition
mass-specific beam attenuation size density composition
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2014/4/4
This study analyzes relationships between concentration of suspended particles represented by dry mass,
[SPM], or area, [AC], and optical properties including particulate beam attenuation (cp), side ...
Short Calculation of Particle Transport Properties in Hydrogen Gas
Hydrogen Transport property Diffusion Thermophoresis Migration
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2016/3/28
Usage of hydrogen gas has increased due to fast development of the fuel cell technology. Currently, little attention is
paid to particles in hydrogen gas, however, particles in hydrogen gas have grea...
Neutral positronium scatters like a charged particle（图）
Neutral positronium a charged particle
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2010/11/30
Positronium is the atom-like bound state of an electron and its antiparticle the positron – and therefore has no net electrical charge. But physicists in the UK are scratching their heads after findin...
Surfatron acceleration of a relativistic particle by electromagnetic plane wave
Surfatron acceleration relativistic particle electromagnetic plane wave
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2010/11/16
We study motion of a relativistic charged particle in a plane slow electromagnetic wave and background uniform magnetic field. The wave propagates normally to the background field. Under certain condi...
Discrete basis of localized quantum states for the free particle
Discrete basis localized quantum states free particle
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2010/11/8
An infinite discrete series of solutions of the free Schr\"odinger equation in one dimension is constructed. These solutions are normalizable, expand the whole space of solutions, are spatially multi-...
An alternative approach to exact wave functions for time-dependent coupled oscillator model of charged particle in variable magnetic field
time-dependent coupled oscillator model charged particle variable magnetic field
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2010/11/4
A general treatment of the quantal time-dependent coupled oscillators in presence of the variable magnetic field is presented. The treatment is based on the use of an alternative canonical transforma...
Time-dependent coupled oscillator model for charged particle motion in the presence of a time varyingmagnetic field
charged particle motion unitary transformation
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2010/11/4
The dynamics of time-dependent coupled oscillator model for the charged particle motion subjected to a time-dependent external magnetic field is investigated. We used canonical transformation approach...
Comment on ‘‘Particle dispersal due to interplay of motions in the surface layer of a small reservoir’’ (by P. Okely, J. Imberger, and K. Shimizu) and ‘‘Processes affecting horizontal mixing and dispersion in Winam Gulf, Lake Victoria’’ (by P. Okely, J. Imberger, and J. P. Antenucci)
Particle dispersal surface layer of a small reservoir
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2014/4/4
Okely et al. (2010a,b) are concerned with horizontal
dispersion and mixing in lakes and employ numerical
modeling to estimate horizontal dispersion coefficients. In
both papers, the dispersal of fo...
Exact solutions of a particle in a box with a delta function potential: The factorization method
particle delta function potential factorization method
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2010/3/10
We find the exact eigenvalues and eigenfunctions for the problem of a particle in a box with a delta function potential $V(x)=\lambda\delta(x-x_{0})$ using the factorization method. We show that the p...
Particle Physics - It Matters, say UK policy makers
policy makers particle physics UK STFC
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2009/6/3
A new report, Particle Physics – It Matters, was released today after collaboration between the UK Institute of Physics (IOP) and the UK Science and Technology Facilities Council (STFC). CERN physicis...
Charged Particle--Image Interaction Near a Conducting Surface
Bohm-Pines Transformation Image Charge Plasmons
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2010/4/12
The interaction of a bulk electron with conducting surfaces is studied by means of the Bohm-Pines transformation in the second quantization formalism. The effective interaction potentials are obtained...