搜索结果: 1-15 共查到“理学 bound states”相关记录32条 . 查询时间(0.08 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...
Deriving the existence of $B\bar{B}^*$ bound states from the X(3872) and Heavy Quark Symmetry
Deriving the existence Heavy Quark Symmetry
2011/7/21
We discuss the possibility and the description of bound states between $B$ and $\bar{B}^*$ mesons. We argue that the existence of such a bound state can be deduced from (i) the weakly bound X(3872) st...
Stability of bound states of Hamiltonian PDEs in the degenerate cases
Hamiltonian PDEs degenerate cases Analysis of PDEs
2011/9/14
Abstract: We consider a Hamiltonian systems which is invariant under a one-parameter unitary group. We give a criterion for the stability and instability of bound states for the degenerate case. We ap...
Scaling and universality in two dimensions: three-body bound states with short-ranged interactions
two dimensions three-body bound states short-ranged interactions Quantum Gases
2011/10/8
Abstract: The momentum space zero-range model is used to investigate universal properties of three interacting particles confined to two dimensions. The pertinent equations are first formulated for a ...
Bound states of PT-symmetric separable potentials
PT-symmetric separable potentials High Energy Physics - Theory
2011/9/30
Abstract: All of the PT-symmetric potentials that have been studied so far have been local. In this paper nonlocal PT-symmetric separable potentials of the form $V(x,y)=i\epsilon[U(x)U(y)-U(-x)U(-y)]$...
Bound states in the radiation continuum and a resonant generation of second harmonics in double arrays of subwavelength dielectric cylinders
Bound states radiation continuum subwavelength dielectric cylinder second harmonics
2011/8/24
Abstract: A nonlinear electromagnetic scattering problem is studied for two parallel periodic arrays of dielectric cylinders with a second order nonlinear susceptibility. For a wide range of values of...
Novel Bound States Treatment of the Two Dimensional Schrodinger Equation with Pseudocentral Plus Multiparameter Noncentral Potential
Pseudocentral potentials noncentral potential two dimensional Schrodinger equation
2011/7/28
Abstract: By converting the rectangular basis potential V(x,y) into the form as V(r)+V(r, phi) described by the pseudo central plus noncentral potential, particular solutions of the two dimensional Sc...
Quasi-bound states in the continuum: a dynamical coupled-channel calculation of axial-vector charmed mesons
Quasi-bound coupled-channel axial-vector
2011/9/14
Masses and widths of the charmed axial-vector mesons D1(2420), D1(2430), Ds1(2536), and Ds1(2460) are calculated nonperturbatively in the Resonance-Spectrum-Expansion model, by coupling various open a...
Quasi-bound states in the continuum: a dynamical coupled-channel calculation of axial-vector charmed mesons
Quasi-bound states dynamical coupled-channel calculation High Energy Physics - Phenomenology
2011/7/28
Quasi-bound states in the continuum: a dynamical coupled-channel calculation of axial-vector charmed mesons.
More kaonic bound states and a comprehensive interpretation of the D_{sJ} states
kaonic bound states comprehensive interpretation D_{sJ} states
2011/4/7
More kaonic bound states and a comprehensive interpretation of the D_{sJ} states 。
We describe a method of solving quantum field theories using operator techniques based on the expansion of interacting fields in terms of asymptotic fields. For bound states, we introduce an asymptoti...
On resonances and bound states of the 't Hooft-Polyakov monopole
resonances bound states 't Hooft-Polyakov monopole
2011/3/3
We present a systematic approach to the linearised Yang-Mills-Higgs equations in the background of a 't Hooft-Polyakov monopole and use it to unify and extend previous studies of their spectral proper...
Numerical Continuation of resonances and bound states in coupled channel Schrödinger equations
Resonances Numerical Continuation Coupled Channels Schr¨odinger equation
2011/1/17
In this contribution, we introduce numerical continuation methods and bifurcation theory, techniques which find their roots in the study of dynamical systems,to the problem of tracing the parameter de...
Bound states of the Duffin-Kemmer-Petiau equation with a mixed minimal-nonminimal vector cusp potential
Bound states the Duffin-Kemmer-Petiau equation
2010/12/23
The problem of spin-0 and spin-1 bosons subject to a general mixing of minimal and nonminimal vector cusp potentials is explored in a unified way in the context of the Duffin-Kemmer-Petiau theory. Eff...
Conformal Mapping and Bound States in Bent Waveguides
Conformal Mapping Bent Waveguides Quantum Physics
2010/11/8
Is it possible to trap a quantum particle in an open geometry? In this work we deal with the boundary value problem of the stationary Schroedinger (or Helmholtz) equation within a waveguide with strai...