搜索结果: 1-15 共查到“物理学 singularities”相关记录27条 . 查询时间(0.099 秒)
Coulomb singularities in scattering wave functions of spin-orbit-coupled states
coulomb singularities spin-orbit-coupled states scattering wave functions
2011/10/8
Abstract: We report on our analysis of the Coulomb singularity problem in the frame of the coupled channel scattering theory including spin-orbit interaction. We assume that the coupling between the p...
Spectral Singularities of a General Point Interaction
Complex potential spectral singularity point interaction PT -symmetry
2011/8/31
Abstract: We study the problem of locating spectral singularities of a general complex point interaction with a support at a single point. We also determine the bound states, examine the special cases...
Spectral Singularities of a Complex Spherical Barrier Potential and Their Optical Realization
Complex potential spectral singularity zero-width resonance gain medium threshold gain spherical dye laser
2011/8/31
Abstract: The mathematical notion of a spectral singularity admits a physical interpretation as a zero-width resonance. It finds an optical realization as a certain type of lasing effect that occurs a...
Spectral Singularities of a Complex Spherical Barrier Potential and Their Optical Realization
Complex potential spectral singularity zero-width resonance gain medium threshold gain spherical dye laser
2011/8/16
Abstract: The mathematical notion of a spectral singularity admits a physical interpretation as a zero-width resonance. It finds an optical realization as a certain type of lasing effect that occurs a...
Thermodynamic phase transitions and shock singularities
thermodynamic phase transitions shock singularities Mathematical Physics
2011/9/29
Abstract: We show that under rather general assumptions on the form of the entropy function, the energy balance equation for a system in thermodynamic equilibrium is equivalent to a set of nonlinear e...
Continuity of the Lyapunov Exponent for analytic quasi-perodic cocycles with singularities
the Lyapunov Exponent analytic quasi-perodic cocycles singularities Harper's model
2011/7/29
Abstract: We prove that the Lyapunov exponent of quasi-periodic cocyles with singularities behaves continuously over the analytic category. We thereby generalize earlier results, where singularities w...
Polarisation singularities of non-paraxial Gaussian vortex beams diffracted by an annular aperture
polarisation singularities non-paraxial annular aperture C-points
2013/7/3
Based on the vectorial Rayleigh–Sommerfeld diffraction integrals, the propagation expressions for non-paraxial Gaussian vortex beams diffracted by an annular aperture are derived, and are used to anal...
Can accretion disk properties observationally distinguish black holes from naked singularities?
accretion disk properties black holes naked singularities
2010/12/20
Naked singularities are hypothetical astrophysical objects, characterized by a gravitational sin-gularity without an event horizon. Penrose has proposed a conjecture, according to which there exists a...
Ultraviolet singularities in classical brane theory
Ultraviolet singularities classical brane theory
2010/12/23
We construct for the first time an energy-momentum tensor for the electromagnetic field of a p-brane in arbitrary dimensions, entailing finite energy-momentum integrals. The construction relies on di...
Real and virtual corrections in NNLO QCD require multi-dimensional integrals with overlapping singularities. We first review ideas and methods which have been proposed for performing such computations...
Junction conditions at spacetime singularities
Junction conditions spacetime singularities
2010/12/27
A classical model for the extension of singular spacetime geometries across their singularities is presented. The regularization introduced by this model is based on the following observation. Among ...
Can accretion disk properties observationally distinguish black holes from naked singularities?
black holes naked singularities
2010/12/27
Naked singularities are hypothetical astrophysical objects, characterized by a gravitational singularity without an event horizon. Penrose has proposed a conjecture, according to which there exists a ...
In this paper we characterize barotropic index singularities of homogeneous isotropic cosmological models. They are shown to appear in cosmologies for which the scale factor is analytical with a Tayl...
In this paper we characterize barotropic index singularities of homogeneous isotropic cosmological models [1]. They are shown to appear in cosmologies for which the scale factor is analytical with a T...
We investigate here the particle acceleration by naked singularities to arbitrarily high center of mass energies. Recently it has been suggested that black holes could be used as particle accelerators...