Results 11 to 20 of about 223,941 (197)

High-order correction calculation for survival of Rydberg atoms in intense laser fields

open access: yesResults in Physics, 2021
Using a method based on the Magnus expansion, the survival of Rydberg atoms in intense laser fields is studied. Usually, for atoms in intense laser fields, effects beyond the electric dipole approximation need to be considered.
Jiajia Zha   +5 more
doaj   +1 more source

Study of the quadrupole deformation parameter in heavy and superheavy nuclei [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2020
In this paper, the potential energy surfaces of nuclei with atomic numbers Z=90-100 within the microscopic-macroscopic Cranked Nilsson-Strutinsky (CNS) formalism are studied, and the axial quadrupole deformation parameter for these isotopes has been ...
H. Zanganeh   +2 more
doaj   +1 more source

Polarization Effects in Superdeformed Nuclei [PDF]

open access: yes, 1998
A detailed theoretical investigation of polarization effects in superdeformed nuclei is performed. In the pure harmonic oscillator potential it is shown that when one particle (or hole) with the mass single-particle quadrupole moment q_{nu} is added to a
Afanasjev   +27 more
core   +3 more sources

Active-quadrupole interaction of Bessel beams and their influence on atoms

open access: yesJournal of Taibah University for Science, 2020
This paper explains how the optical quadrupole interaction between a two-level neutral atom and two counter-propagating non-diffracting Bessel beams can exhibit interesting rotational characteristics.
S. Al-Awfi
doaj   +1 more source

Ground and excited state characteristics of the nuclei with A = 6 [PDF]

open access: yesЯдерна фізика та енергетика, 2021
The binding energy, the root-mean-square radius, the magnetic dipole moment, the electric quadrupole moment, and the moment of inertia of the nucleus 6Li are calculated by applying different models.
S. B. Doma
doaj   +1 more source

Hardware and program system for determination of authenticity of medicines by nuclear quadrupole resonance method

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2022
THE PURPOSE. Study the possibility of using a laboratory nuclear magnetic resonance console as a device for detecting counterfeit medicines. The problem of detecting counterfeit and counterfeit medicines is now very acute.
R. R. Khusnutdinov
doaj   +1 more source

On the feasibility of cooling and trapping metastable alkaline-earth atoms [PDF]

open access: yes, 2001
Metastability and long-range interactions of Mg, Ca, and Sr in the lowest-energy metastable $^3P_2$ state are investigated. The calculated lifetimes are 38 minutes for Mg*, 118 minutes for Ca*, and 17 minutes for Sr*, supporting feasibility of cooling ...
A. Dalgarno   +16 more
core   +2 more sources

Chaos in periodically perturbed monopole + quadrupole-like potentials

open access: yesPhysics Letters A, 1998
The motion of a particle that suffers the influence of simple inner (outer) periodic perturbations when it evolves around a center of attraction modeled by an inverse square law plus a quadrupole-like term is studied. The equations of motion are used to reduce the Melnikov method to the study of simple graphics.
Letelier, P. S., Vieira, W. M.
openaire   +2 more sources

CMB quadrupole suppression: II. The early fast roll stage [PDF]

open access: yes, 2006
Within the effective field theory of inflation, an initialization of the classical dynamics of the inflaton with approximate equipartition between the kinetic and potential energy of the inflaton leads to a brief fast roll stage that precedes the slow ...
A. R. Liddle   +21 more
core   +4 more sources

Electric quadrupole transitions of the Bohr Hamiltonian with Manning–Rosen potential [PDF]

open access: yesNuclear Physics A, 2016
20 pages, 2 figures, 4 Tables (to appear in Nuclear Physics A)
M. Chabab   +3 more
openaire   +2 more sources

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