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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Nonlinear wave-packet interferometry and molecular state reconstruction /

Humble, Travis Selby. January 2005 (has links)
Thesis (Ph. D.)--University of Oregon, 2005. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 218-220). Also available for download via the World Wide Web; free to University of Oregon users.
2

Generalized orthogonally multiplexed communication via wavelet packet bases

Lindsey, Alan R. January 1995 (has links)
Thesis (Ph. D.)--Ohio University, June, 1995. / Title from PDF t.p.
3

Phase modulation wave packet interferometry in one and two dimensions /

Tekavec, Patrick Frank, January 2006 (has links)
Thesis (Ph. D.)--University of Oregon, 2006. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 134-140). Also available for download via the World Wide Web; free to University of Oregon users.
4

Mixed Quantum/Semiclassical Theory for Small-Molecule Dynamics and Spectroscopy in Low-Temperature Solids

Cheng, Xiaolu 11 July 2013 (has links)
A quantum/semiclassical theory for the internal nuclear dynamics of a small molecule and the induced small-amplitude coherent motion of a low-temperature host medium is developed, tested and applied to simulate and interpret ultrafast optical signals. Linear wave-packet interferometry and time-resolved coherent anti-Stokes Raman scattering signals for a model of molecular iodine in a 2D krypton lattice are calculated and used to study the vibrational decoherence and energy dissipation of iodine molecules in condensed media. The total wave function of the whole model is approximately obtained instead of a reduced system density matrix, and therefore the theory enables us to analyze the behavior and the role of the host matrix in quantum dynamics. This dissertation includes previously published co-authored material.
5

Wave packet theory of resonant X-ray scattering

Salek, Pawel January 2001 (has links)
QC 20100629
6

Quantum dynamics on adaptive grids : the moving boundary truncation method

Pettey, Lucas Richard, 1974- 11 October 2012 (has links)
A novel method for integrating the time-dependent Schrödinger equation is presented. The moving boundary truncation (MBT) method is a time-dependent adaptive method that can significantly reduce the number of grid points needed to perform accurate wave packet propagation while maintaining stability. Hydrodynamic quantum trajectories are used to adaptively define the boundaries and boundary conditions of a fixed grid. The result is a significant reduction in the number of grid points needed to perform accurate calculations. A variety of model potential energy surfaces are used to evaluate the method. Excellent agreement with fixed boundary grids was obtained for each example. By moving only the boundary points, stability was increased to the level of the full fixed grid. Variations of the MBT method are developed which allow it to be applied to any potential energy surface and used with any propagation method. A variation of MBT is applied to the collinear H+H₂ reaction (using a LEPS potential) to demonstrate the stability and accuracy. Reaction probabilities are calculated for the three dimensional non-rotating O(³P)+H₂ and O(³P)+HD reactions to demonstrate that the MBT can be used with a variety of numerical propagation techniques. / text
7

Anomalous dispersion of excitation pulses in the 1,4-cyclohexanedione Belousov-Zhabotinsky reaction

Hamik, Chad Thomas. Steinbock, Oliver. January 2003 (has links)
Thesis (Ph. D.)--Florida State University, 2003. / Advisor: Dr. Oliver Steinbock, Florida State University, College of Arts and Sciences, Dept. of Chemistry and Biochemistry. Title and description from dissertation home page (Aug. 27, 2004). Includes bibliographical references.
8

Quantum dynamics on adaptive grids the moving boundary truncation method /

Pettey, Lucas Richard, January 1900 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2008. / Vita. Includes bibliographical references.
9

Spectral modulation, gravity and time-dependent correlations in neutron interferometry /

Jacobson, David, January 1996 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1996. / Typescript. Vita. Includes bibliographical references (leaves 262-263). Also available on the Internet.
10

Spectral modulation, gravity and time-dependent correlations in neutron interferometry

Jacobson, David, January 1996 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1996. / Typescript. Vita. Includes bibliographical references (leaves 262-263). Also available on the Internet.

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