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Physics

Atomic / Molecular / Quantum

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Displaying 1026 - 1050 of 1133

A chromium surface magneto-optical trap for magnetic microtrap studies

May 1, 2004
Author(s)
M Pichler, S Hill, Jabez J. McClelland
A surface magneto-optical trap for chromium atoms is demonstrated as a first step toward loading atoms into microscopic magnetic traps. Characteristics of the trap and transfer to microscopic magnetic traps will be discussed.

Intermolecular Potential and Second Virial Coefficient of the Water-Hydrogen Complex

January 1, 2004
Author(s)
M P. Hodges, R J. Wheatley, G K. Schenter, Allan H. Harvey
We construct a rigid-body (5-dimensional) potential-energy surface for the water-hydrogen complex using scaled perturbation theory (SPT). An analytic fit of this surface is obtained, and using this, two minima are found: the global miniumum has C 2v

Atoms on Demand: Fast, Deterministic Production of Single Cr Atoms

May 5, 2003
Author(s)
S Hill, Jabez J. McClelland
We have realized a method for producing single Cr atoms on demand by suppressing the stochastic nature of the loading and loss processes of a magneto-optic trap. We observe single-atom trap occupation probabilities as high as (98.7 plus or minus} 0.1)% and

Laboratory Astrophysics Survey of Key X-Ray Diagnostic Lines Using a Microcalorimeter on an Electron Beam Ion Trap

September 1, 2000
Author(s)
E Silver, H. Schnopper, Simon R. Bandler, N Brickhouse, S Murray, M Barbera, E Takacs, John D. Gillaspy, James V. Porto, I Kink, J M. Laming, N. Madden, D Landis, J. Beeman, E. E. Haller
Cosmic plasma conditions created in an Electron Beam Ion Trap (EBIT) make it possible to simulate the dependencies of Key diagnostic x-ray lines on density, temperature, and excitation conditions that exist in astrophysical sources. We used a

Magneto-Optical Trapping of Chromium Atoms

May 1, 2000
Author(s)
C Bradley, Jabez J. McClelland, W Anderson, Robert Celotta
We have constructed a magneto-optical trap for chromium atoms. Using trapping light at 425 nm and two repumping lasers tuned to intercombination transitions, over 10 6 atoms were trapped and average densities of over 10 16 m -3 were obtained. Non
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