Biomedical subjects
LA Collins
Publications and source records attributed to LA Collins.
Generating solitons by phase engineering of a bose-einstein condensate
Quantum phase engineering is demonstrated with two techniques that allow the spatial phase distribution of a Bose-Einstein condensate (BEC) to be written and read out. A quantum state was designed and produced by optically imprinting a phase pattern onto a BEC of sodium atoms, and matter-wave interferometry with spatially resolved imaging was used to analyze the resultant phase distribution. An appropriate phase imprint created solitons, the first experimental realization of this nonlinear phenomenon in a BEC. The subsequent evolution of these excitations was investigated both experimentally and theoretically.
First-principles study of solid Ar and Kr under high compression.
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Electron scattering from H2+: Resonances in the Sigma and Pi symmetries.
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Tight-binding models for hot dense hydrogen.
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Molecular dynamics simulations of hot, dense hydrogen.
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Electron scattering by a potential in the presence of a strong single-mode radiation field.
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Multiphoton detachment of negative ions in an intense radiation field.
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Electron scattering from H2+: Resonances in the Pi symmetries.
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Multiphoton resonances in e+H+ scattering in a linearly polarized radiation field.
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Hybrid approach to electron scattering from polar molecules.
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Solutions to the time-dependent three-dimensional Schrödinger equation: Atoms in intense electric fields.
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Studies of Rydberg-valence mixed autoionizing states in NO.
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Model calculations for an atom interacting with an intense, time-dependent electric field.
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Interfering resonances: Avoided crossings of autoionizing states in molecules.
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Direct iteration-variation method for scattering problems.
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Electronic excitation of atoms and molecules using the linear-algebraic method.
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Tests of separable expansions of the exchange kernel in inelastic electron collisions.
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