Zero-range potentials and their applications in atomic physics

  title={Zero-range potentials and their applications in atomic physics},
  author={Yu. N. Demkov and V. N. Ostrovskiǐ},
Interaction of laser radiation with a negative ion in the presence of a strong static electric field
This paper provides a general theoretical description of a weakly bound atomic system (a negative ion) interacting simultaneously with two (generally strong) fields, a static electric field and aExpand
Controlling H - detachment with few-cycle pulses
We present a detailed analysis of short-pulse detachment processes using few-cycle pulses with the aim of demonstrating means for controlling such processes. We first generalize the standardExpand
Decay of a negative molecular ion in a constant electric field
The problem of the shift and broadening of the electron energy levels in the field of two 3D short-range potentials (e.g., the model of a negative molecular ion) by a constant electric field F isExpand
An electron in the presence of multiple zero range potentials and an external laser field -- exact solutions for photoionization and stimulated bremsstrahlung
The method of zero range potential (ZRP) for one-electron problems is reviewed. In the absence of an external electromagnetic field, the notion of a ZRP is introduced from different points of viewExpand
Static-electric-field effects on high harmonic generation.
  • Bao, Starace
  • Physics, Medicine
  • Physical review. A, Atomic, molecular, and optical physics
  • 1996
High harmonic generation in the presence of a static electric field is analyzed theoretically by an extension of the zero-range potential model treatment of Becker et al. [Phys. Rev. A 50, 1540Expand
Drag effect of one-dimensional electrons upon photoionization of D(−) centers in a longitudinal magnetic field
A theory is elaborated for the impurity photon drag effect in a semiconductor quantum wire exposed to a longitudinal magnetic field B directed along the axis of the quantum wire. The phonon dragExpand
Model for electron detachment from negative ions by ultrashort half-cycle electric-field pulses
We study a model for electron detachment from negative ions by ultrashort unipolar electric pulses. The electron-atom interaction is described by the zero-range potential and the temporal dependenceExpand
Short‐range approach to an A+BC collision complex with a contribution of an ionic state A++BC−: Application to A=H
An effective quasi‐one‐electron asymptotic technique is developed for treating the electronic part of A+BC molecular interaction. The theory proceeds from a model of the motion of an electron in theExpand
Scalar and spinor particles with low binding energy in a strong stationary magnetic field in two and three dimensions
We discuss the equations for the bound one-active electron states based on analytic solutions of the Schroedinger and Pauli equations for a uniform magnetic field and a single attractive {delta}(r)Expand
Decay versus survival of a localized state subjected to harmonic forcing: exact results
We investigate the survival probability of a localized 1D quantum particle subjected to a time-dependent potential of the form rU(x) sin ωt with U( x)= 2δ(x− a)or U( x)= 2δ(x− a)− 2δ(x+ a) .T heExpand