搜索结果: 1-15 共查到“理论物理学 singularities”相关记录15条 . 查询时间(0.086 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...
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...
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...
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...
Junction conditions at spacetime singularities
Junction conditions spacetime singularities
2010/12/20
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.
Spectral singularities such as exceptional points invoke specific physical effects. The present
paper focuses upon the time dependent solutions of the Schr¨odinger equation. In a simple model it is d...
Hamiltonian motions of plane curves and formation of singularities and bubbles
Hamiltonian motions plane curves
2010/4/1
A class of Hamiltonian deformations of plane curves is defined and studied. Hamiltonian deformations of conics and cubics are considered as illustrative examples. These deformations are described by s...
Cosmological singularities in FLRW spacetimes
Cosmological singularities dark energy geodesics
2010/3/18
In this talk we review the appearance of new types of singularities (big rip, sudden singularities...) in FLRW cosmological models that have arisen on considering explanations for accelerated expansio...
Spectral Singularities of Complex Scattering Potentials and Infinite Reflection and Transmission Coefficients at real Energies
Scattering Potentials Infi nite Refl ection Transmission Coefficients real Energies
2010/4/16
Spectral singularities are spectral points that spoil the completeness of the eigenfunctions of certain non-Hermitian Hamiltonian operators. We identify spectral singularities of complex scattering po...
Spectral Singularities, Biorthonormal Systems, and a Two-Parameter Family of Complex Point Interactions
complex potential spectral singularity biorthonormal system scattering bound state quasi-Hermitian PT -symmetry point interaction
2010/4/13
A curious feature of complex scattering potentials v(x) is the appearance of spectral singularities. We offer a quantitative description of spectral singularities that identifies them with an obstruct...
The Critical Lines of the Yang-Lee Edge Singularities of the Anisotropic Ising Ferromagnets on Square,
Triangular and Honeycomb Lattices
Yang-Lee edge singularity Ising ferromagnet
2007/8/15
2001Vol.35No.3pp.365-370DOI:
The Critical Lines of the Yang-Lee Edge Singularities of the Anisotropic Ising Ferromagnets on Square,
Triangular and Honeycomb Lattices
WANG Xian-Zhi...
Formation of Singularities in One-Dimensional Hydromagnetic Flow
system of hydromagnetic dynamics Cauchy problem periodic flow blow-up
2007/8/15
2002Vol.37No.4pp.385-392DOI:
Formation of Singularities in One-Dimensional Hydromagnetic Flow
KONG De-Xing
Department of Applied Mathematics, Shanghai Jiao Tong
Universi...
Effects of van Hove Singularities on Transport
of Quantum Dot Systems in Kondo Regime
quantum dot system van Hove singularities Kondo effect
2007/8/15
2005Vol.44No.3pp.563-572DOI:
Effects of van Hove Singularities on Transport
of Quantum Dot Systems in Kondo Regime
HU Zhi-Ming,1 YANG Kai-Hua,2 and TIAN Guang-Shan1
1 Sc...