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University of Windsor

2002

Articles 1 - 3 of 3

Full-Text Articles in Physics

Quantum-State Information Retrieval In A Rydberg-Atom Data Register, J. Ahn, Chitra Rangan, D.N. Hutchinson, P.H. Bucksbaum Jan 2002

Quantum-State Information Retrieval In A Rydberg-Atom Data Register, J. Ahn, Chitra Rangan, D.N. Hutchinson, P.H. Bucksbaum

Physics Publications

The connections between the phase retrieval protocol in a Rydberg data register were shown via an impulsive half-cycle pulse and the more general problem of constructing a database-search algorithm. The sensitivity of the phase retrieval to the peak HCP field was explained by multimode interference. By programming the initial wave packet and the HCP, it was possible to create the correct interference conditions to produce any desired energy eigenstates.


Lithium Transition Energies And Isotope Shifts: Qed Recoil Corrections, Z. C. Yan, Gordon W. F. Drake Jan 2002

Lithium Transition Energies And Isotope Shifts: Qed Recoil Corrections, Z. C. Yan, Gordon W. F. Drake

Physics Publications

The quantum electrodynamic recoil correction for lithium in the 22S1/2, 32S1/2 and 22PJ states was evaluated, and its impact on lithium isotope shifts was examined. The nonrelativistic variational wave functions were constructed from fully correlated basis sets in Hylleraas coordinates. Results for the total transition frequencies were shown to be in good agreement with experiment, but there were discrepancies between theory and experiment for isotope shift in the fine structure splitting for 1s22p2P state.


Ground-State Energies For Helium, H-, And Ps-, Gordon W. F. Drake, M. M. Cassar, R. A. Nistor Jan 2002

Ground-State Energies For Helium, H-, And Ps-, Gordon W. F. Drake, M. M. Cassar, R. A. Nistor

Physics Publications

Nonrelativistic energy and other properties of He, H- and Ps- were discussed using a triple basis set in Hylleraas coordinates. The stability and efficiency of the computational method was compared with the quasirandom method. Results showed that the triple basis set in Hylleraas coordinates is capable of exceeding the accuracy of calculations for three-body system based on quasirandom Monte Carlo methods.