搜索结果: 31-45 共查到“理学 klein”相关记录73条 . 查询时间(0.151 秒)
Global dynamics above the ground state for the nonlinear Klein-Gordon equation without a radial assumption
Global dynamics above the ground state the nonlinear Klein-Gordon equation
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2010/11/8
We extend our previous result on the focusing cubic Klein-Gordon equation in three dimensions to the non-radial case, giving a complete classification of global dynamics of all solutions with energy a...
Low regularity well-posedness for the 3D Klein-Gordon-Schrödinger system
the 3D Klein-Gordon-Schrö dinger system math
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2010/11/19
The Klein-Gordon-Schr\"odinger system in 3D is shown to be locally well-posed for Schr\"odinger data in H^s and wave data in H^{\sigma} \times H^{\sigma -1}, if s > - \frac{1}{4}, \sigma > - \frac{1}...
Numerical study of the blowup/global existence dichotomy for the focusing cubic nonlinear Klein-Gordon equation
the blowup/global existence dichotomy the focusing cubic nonlinear Klein-Gordon equation
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2010/11/15
We present some numerical findings concerning the nature of the blowup vs. global existence dichotomy for the focusing cubic nonlinear Klein-Gordon equation in three dimensions for radial data. The co...
Abelian Yang-Mills theory on Real tori and Theta divisors of Klein surfaces
Abelian Yang-Mills theory Real tori Theta divisors
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2010/11/11
The purpose of this paper is to determine natural theta line bundles of Klein surfaces as elements in the Grothendieck cohomology group which classifies Real line bundles in the sense of Atiyah. Thes...
Antiparticle in Light of Einstein-Podolsky-Rosen Paradox and Klein Paradox
Antiparticle Light Einstein-Podolsky-Rosen Paradox Klein Paradox
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2010/10/13
Every particle has its antiparticle. However, in most textbooks on quantum mechanics (QM), there is nearly no clear explanation for the wavefunction (WF) of antiparticle. Some times (and often implici...
Klein tunneling in carbon nanostructures: a free particle dynamics in disguise
Klein tunneling carbon nanostructures particle dynamics disguise
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2010/11/9
The absence of backscattering in metallic nanotubes as well as perfect Klein tunneling in the potential barriers in graphene are explained by showing that both phenomena have a free particle dynamics...
Electromagnetic Klein-Gordon and Dirac equations in scale relativity
Electromagnetic Klein-Gordon Dirac equations scale relativity
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2010/10/27
We present a new step in the foundation of quantum field theory with the tools of scale relativity. Previously, quantum motion equations (Schr¨odinger, Klein-Gordon, Dirac, Pauli) have been derived as...
Orbital stability of coupled standing waves for systems of non-linear Klein-Gordon equations
standing waves elliptic systems unbounded
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2010/12/3
In this work we consider a system of two non-linear waves equa-tions where the non-negative, non-linear term is subcritic and contains a cou-pling term. We show the existence of standing waves solutio...
From chemical Langevin equations to Fokker-Planck equation: application of Hodge decomposition and Klein-Kramers equation
Fokker-Planck equation application of Hodge decomposition Klein-Kramers equation
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2010/12/8
The stochastic systems without detailed balance are common in various chemical reaction systems, such as metabolic network systems. In studies of these systems, the concept of potential landscape is u...
On long-time decay for modified Klein-Gordon equation
Klein-Gordon equation relativistic equations resolvent spectral representa-tion
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2010/12/6
We obtain a dispersive long-time decay in weighted energy norms for solutions of the Klein-Gordon equation in a moving frame. The decay extends the results of Jensen, Kato and Murata for the equations...
Amusing properties of Klein-Gordon solutions on manifolds with variable geometry
properties Klein-Gordon solutions on manifolds variable geometry
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2010/12/16
This work develops the recent proposition to use dimensional reduction from the four-imensional space-time to the one with a smaller number of dimensions (1 + d); d < 3 at high enough energy.To this g...
Perturbation of heliosynchronous orbits in stable Kaluza-Klein theory
heliosynchronous orbits stable Kaluza-Klein theory
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2010/3/8
Although the methods and techniques have been greatly improved since the late nineteenth century, the precision on the measurement of the gravitational constant G does not exceed 1 part in 1000. Intri...
Global causal propagator for the Klein-Gordon equation on a class of supersymmetric AdS backgrounds
Klein-Gordon equation supersymmetric AdS backgrounds spectral-theoretic techniques
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2010/3/19
We analyze the Cauchy problem for the Klein-Gordon equation on the type IIB supergravity backgrounds $AdS^5 \times Y^{p,q}$, where $Y^{p,q}$ is any of the Sasaki-Einstein 5-manifolds recently discover...
含时线性Klein-Gordon方程的解
K-G方程 不变量方法 含时K-G方程的解
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2009/11/19
把K-G方程通过变量代换化简成对时间一阶求导的形式，即薛定谔方程的形式. 然后运用不变量方法求解含时线性情况下K-G方程的解. 并讨论2种相关的情况：相对论非含时和非相对论含时情况下解的形式.
Kink ratchets in the Klein-Gordon lattice free of the Peierls-Nabarro potential
Kink ratchets Peierls-Nabarro potential Klein-Gordon lattice
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2010/4/7
A discrete Klein-Gordon model with asymmetric potential that supports kinks free of the Peierls-Nabarro potential (PNp) is constructed. Undamped ratchet of kinks under harmonic AC driving force is inv...