Search
Now showing items 1-10 of 65
Proposal for a Loophole-Free Test of the Bell Inequalities
(American Physical Society, 1995)
A proposal for an experimental realization of Bohm's spin-1/2 particle version of the Einstein-Podolsky-Rosen experiment is described. Two Hg-199 atoms, each with nuclear spin 1/2, are produced in an entangled state with ...
Electron capture from H-2 to highly charged Th and Xe ions trapped at center-of-mass energies near 6 eV
(American Physical Society, 1998)
Ions with charge states as high as 80+, produced in the Lawrence Livermore National Laboratory electron beam ion trap were extracted and transferred to a Penning ion trap (RETRAP). RETRAP was operated at cryogenic temperature ...
Measured Lifetimes of Selected Metastable Levels of Arq+ Ions (Q=2, 3, 9, and 10) Stored in an Electrostatic Ion-Trap
(American Physical Society, 1994)
Metastable multiply charged argon ions produced in, and extracted from, an electron cyclotron resonance ion source were captured from the beam into an electrostatic (Kingdon) ion trap by rapidly pulsing the potential of ...
Excited-Level Lifetimes and Hyperfine-Structure Measurements on Ions using Collinear Laser Ion-Beam Spectroscopy
(American Physical Society, 1994)
The mean lifetimes tau of the Ca II 4p P-2(1/2) and 4p P-2(3/2) levels, and the Cl-35 II 4p' F-1(3) level, have been measured by a variant of the collinear laser-ion-beam lifetime technique applied previously to the Ar II ...
One-And-A-Half-Centered Expansion Method in Charge-Transfer Calculations of Proton-Hydrogen Scattering
(American Physical Society, 1993)
In this paper, we undertake a feasibility study of improving the one-and-a-half-centered expansion (OHCE) method of Reading, Ford, and Becker [J. Phys. B 14, 1995 (198 1)
Quenching Collisions of Low-Energy Metastable Multiply-Charged Argon Ions
(American Physical Society, 1994)
Quenching rates have been measured for selected metastable levels of Ar(q+) ions (q = 2, 3, 9, and 10) stored in a Kingdon ion trap, with mean energies of 262q eV and 181q eV. Effective quenching cross sections derived ...
Measurement of a magnetic-dipole transition probability in Xe32+ using an electron-beam ion trap
(American Physical Society, 1997)
The transition probability for the 3d(4) D-5(2) <-- D-5(3) magnetic-dipole transition in Ti-like Xe (Xe32+) has been measured using an electron-beam ion trap. The unusually weak dependence of the transition energy on nuclear ...
Two-time intensity correlation in a driven three-level system
(American Physical Society, 1996)
We examine the various two-time fluorescence intensity correlations emitted by a driven three-level atom in a cascade configuration. For a strongly driven atom, the two intensity autocorrelation functions, one from the ...
Observation of interference fringes in Autler-Townes line shapes
(American Physical Society, 1996)
We observe Ramsey fringes in the absorption line shape for a weak optical field probing the transition between an unperturbed quantum state and one that is dynamically Stark shifted by a strong pump field.
Measured lifetimes of metastable levels of Mn X, Mn XI, Mn XII, and Mn XIII ions
(American Physical Society, 1999)
An ion storage technique, based on the capture of metastable multiply charged ions from an external ion source into a Kingdon ion trap, has been used to measure the lifetimes of eight metastable levels of Mn ions with ...