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

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dc.contributor.advisorDeutsch, Miriamen_US
dc.contributor.authorCheng, Xiaoluen_US
dc.date.accessioned2013-07-11T20:13:00Z
dc.date.available2013-07-11T20:13:00Z
dc.date.issued2013-07-11
dc.description.abstractA 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.en_US
dc.identifier.urihttps://hdl.handle.net/1794/13001
dc.language.isoen_USen_US
dc.publisherUniversity of Oregonen_US
dc.rightsAll Rights Reserved.en_US
dc.subjectGaussian wave packetsen_US
dc.subjectSemiclassicalen_US
dc.subjectUltrafast spectroscopyen_US
dc.titleMixed Quantum/Semiclassical Theory for Small-Molecule Dynamics and Spectroscopy in Low-Temperature Solidsen_US
dc.typeElectronic Thesis or Dissertationen_US
thesis.degree.disciplineDepartment of Physicsen_US
thesis.degree.grantorUniversity of Oregonen_US
thesis.degree.leveldoctoralen_US
thesis.degree.namePh.D.en_US

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