搜索结果: 1-15 共查到“理学 repulsive”相关记录19条 . 查询时间(0.093 秒)
A class of integrable Hamiltonian systems including scattering of particles on the line with repulsive interactions
class of integrable Hamiltonian systems scattering of particles line repulsive interactions
2012/4/26
The main purpose of this paper is to introduce a new class of Hamiltonian scattering systems of the cone potential type that can be integrated via the asymptotic velocity. For a large subclass, the as...
Non-Perturbative Prediction of the Ferromagnetic Transition in Repulsive Fermi Gases
Fermi Gases Ferromagnetic Transition
2011/7/21
It is generally believed that a dilute spin-1/2 Fermi gas with repulsive interactions can undergo a ferromagnetic phase transition to a spin-polarized state at a critical gas parameter $(k_{\text F}a)...
Phase diagram of Rydberg atoms with repulsive van der Waals interaction
Phase diagram of Rydberg atoms
2011/9/14
We report a quantum Monte Carlo calculation of the phase diagram of bosons interacting with a repulsive inverse sixth power pair potential, a model for assemblies of Rydberg atoms in the local van der...
Blowup for the Euler and Euler-Poisson Equations with Repulsive Forces II
Blowup Euler and Euler-Poisson Equations Repulsive Forces II
2011/2/25
In this paper, we continue to study the blowup problem of the N-dimensional compressible
Euler or Euler-Poisson equations with repulsive forces, in radial symmetry. In details, we
extend the recent ...
A consequence of the repulsive Casimir-Lifshitz force on nano-scale and the related Wheeler propagator in the classical electrodynamics
repulsive Casimir-Lifshitz force nano-scale related Wheeler propagator
2010/12/24
Mainly on nano-scale, but maybe not exclusively, it can be imagined a spontaneous charge disjunction inside certain media due to the fluctuations, collisions, wall effects, radiation or/and other pre...
Repulsive and Restoring Casimir Forces Based on Magneto-Optical Effect
Repulsive Restoring Casimir Forces Magneto-Optical Effect
2014/5/28
The Casimir force direction tuned by the external magnetic field due to the magneto-optical Voigt effect is investigated. The magneto-optical effect gives rise to the modified frequency-dependent elec...
Suppression of the quantum-mechanical collapse by repulsive interactions in a quantum gas
Quantum Gases (cond-mat.quant-gas) Pattern Formation and Solitons (nlin.PS)
2010/11/11
The quantum-mechanical collapse (alias fall onto the center of particles attracted by potential -1/r^2), or "quantum anomaly", is a well-known issue in the quantum theory. We demonstrate that the mean...
Synchronisation Induced by Repulsive Interactions in a System of van der Pol Oscillators
Synchronisation Repulsive Interactions van der Pol Oscillators
2010/11/22
We consider a system of identical van der Pol oscillators, globally coupled through their
velocities, and study how the presence of competitive interactions affects its synchronisation
properties. W...
Bounds on the artificial phase transition for perfect simulation of repulsive point processes
Bounds artificial phase transition perfect simulation repulsive point processes
2010/11/16
Repulsive point processes arise in models where competition forces entities to be more spread apart than if placed independently. Simulation of these types of processes can be accomplished using domin...
Mapping between Hamiltonians with attractive and repulsive potentials on a lattice
Mapping Hamiltonians attractive repulsive potentials
2010/10/21
Through a simple and exact analytical derivation, we show that for a particle on a lattice, there is a one-to-one correspondence between the spectra in the presence of an attractive potential ˆ V...
Repulsive Casimir forces with finite-thickness functional slabs
Repulsive Casimir finite-thickness functional slabs
2010/10/21
We use the extended Lifshitz theory to study the behavior of the Casimir forces between finite-thickness functional slabs. We first study the interaction between a semi-infinite Drude metal and a fini...
Mass media and repulsive interactions in continuous-opinion dynamics
Mass media repulsive interactions continuous-opinion dynamics
2010/4/6
This letter focus on the effect of repulsive interactions on the adoption of an external message in an opinion model. With a simple change in the rules, we modify the Deffuant \emph{et al.} model to i...
Resonance induced by repulsive interactions in a model of globally-coupled bistable systems
Resonance induced globally-coupled bistable systems repulsive interactions
2010/4/1
We show the existence of a competition-induced resonance effect for a generic globally coupled bistable system. In particular, we demonstrate that the response of the macroscopic variable to an extern...
Modeling Repulsive Gravity with Creation
Cosmology theory observation creation negative energy fields SNe Ia
2009/5/12
There is a growing interest among cosmologists for theories
with negative energy scalar fields and creation, in order to model a repulsive
gravity. The classical steady state cosmology proposed by B...
Repulsive and attractive ferroglasses: a SAXS and XPCS study
75.50.Mn Magnetic liquids 61.10.-i X-ray diffraction and scattering 82.70.Dd Colloids 64.70.Pf Glass transitions
2010/7/5
A dynamical freezing, which is the analogous of a glass transition, is observed at large concentrations in aqueous dispersions of maghemite nanoparticles. We study experimentally the structure and the...