搜索结果: 1-15 共查到“物理学 length”相关记录26条 . 查询时间(0.087 秒)
Absence of bound states implies non-negativity of the scattering length
Absence of bound states non-negativity of the scattering length Mathematical Physics
2012/4/18
We show that bosons interacting via pair potentials with negative scattering length form bound states for a suitable number of particles. In other words, the absence of many-particle bound states of a...
Nonlinear Bose-Einstein-condensate Dynamics Induced by a Harmonic Modulation of the s-wave Scattering Length
Nonlinear Bose-Einstein-condensate Dynamics Induced Harmonic Modulation the s-wave Scattering Length
2011/9/15
In a recent experiment, a Bose-Einstein condensate of 7Li has been excited by a harmonic modulation of the atomic s-wave scattering length via Feshbach resonance. By combining an analytical perturbati...
Constraining the neutron-neutron scattering length with \eftnopi
neutron-neutron scattering length
2011/7/20
We compute a model-independent correlation between the difference of neutron-neutron and proton-proton scattering lengths |a(nn)-a^C(pp)| and the splitting in binding energies between Helium-3 and tri...
Minimal length in quantum space and integrations of the line element in Noncommutative Geometry
quantum space integrations line element Noncommutative Geometry
2011/7/25
Abstract: We question the emergence of a minimal length in quantum spacetime, confronting two notions that appeared at various points in the literature: length as the spectrum of an operator L in the ...
The quantum N-body problem with a minimal length
The quantum N-body problem minimal length
2010/12/23
The quantum $N$-body problem is studied in the context of nonrelativistic quantum mechanics with a one-dimensional deformed Heisenberg algebra of the form $[\hat x,\hat p]=i(1+\beta \hat p^2)$, leadin...
In this paper, we investigate the effect of the presence of a quantum gravity induced minimal length in neutrino oscillation probabilities. Neutrinos can propagate freely over large distances without...
In this paper we study the effects of the Generalized Uncertainty Principle (GUP) on the spectrum of a particle that is bouncing vertically and elastically on a smooth reflecting floor in the Earth's...
In this paper, we investigate the effect of the presence of a quantum gravity induced minimal
length in neutrino oscillation probabilities.
In this paper, we investigate the effect of the presence of a quantum gravity induced minimal
length in neutrino oscillation probabilities. Neutrinos can propagate freely over large distances without...
Transport relaxation time and length scales in turbulent suspensions
Transport relaxation time and length scales turbulent suspensions
2010/11/18
We show that in a turbulent ow transporting suspended sediment, the unsaturated sediment ux q(x; t) can be described by a rst-order relaxation equation.
Accurate energy spectrum for power-law potentials with trigonometric basis: The optimal length
Accurate energy spectrum power-law potentials trigonometric basis optimal length
2010/11/11
We propose an optimal length for accurate calculation of eigenvalues and eigenfunctions of power-law potentials with trigonometric basis functions. We show that, this proposal make us free from using ...
Temporal coherence length of light in semiclassical field theory models
Temporal coherence length light semiclassical field theory models
2010/10/29
The following work is motivated by the conceptual problems associated with the wave-particle duality and the notion of the photon. Two simple classical models for radiation from individual emitters ar...
Hydrogen atom in momentum space with a minimal length
Hydrogen atom momentum space minimal length
2010/10/18
A momentum representation treatment of the hydrogen atom problem with a generalized un-
certainty relation,which leads to a minimal length (Xi)min = ~√3 + ′, is presented. We show that the distanc...
Singular inverse square potential in arbitrary dimensions with a minimal length: Application to the motion of a dipole in a cosmic string background
Singular inverse square potential arbitrary dimensions minimal length: Application to the motion dipole cosmic string background
2010/10/18
We solve analytically the Schr¨odinger equation for the N-dimensional inverse square potential
in quantum mechanics with a minimal length in terms of Heun’s functions. We apply our results
to the pr...
Electro-optical sampling non-synchronous delay scanning measurement ofelectron beam bunch length at BFEL
electro-optical sampling measurement of electron beam bunch length non-synchronous delay scanning technique
2010/5/7
The Electro-optical sampling delay scanning technique can be used for electron beam bunch length measurement. A novel non-ynchronous delay scanning technique based on the electro-optical sampling meas...