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dc.contributor.advisorReichl, L. E.en
dc.creatorHolder, Benjamin Peirce, 1976-en
dc.date.accessioned2008-08-28T23:36:45Zen
dc.date.available2008-08-28T23:36:45Zen
dc.date.issued2007en
dc.identifierb68890242en
dc.identifier.urihttp://hdl.handle.net/2152/3251en
dc.descriptiontexten
dc.description.abstractThe dynamics of non-interacting, ultracold alkali atoms in the presence of counter-propagating lasers (optical lattice systems) is considered theoretically. The center of mass motion of an atom is such a system can be described by an effective Hamiltonian of a relatively simple form. Modulation of the laser fields implies a parametric variation of the effective Hamiltonian's eigenvalue spectrum, under which avoided crossings may occur. We investigate two dynamical processes arising from these near-degeneracies, which can be manipulated to coherently control atomic motion. First, we demonstrate the mechanism for the chaos-assisted, or multiple-state, tunneling observed in recent optical lattice experiments. Second, we propose a new method for the coherent acceleration of lattice atoms using the techniques of stimulated Raman adiabatic passage (STIRAP). In each case we use perturbation analysis to show the existence of a small, few level, subsystem of the full effective Schrödinger equation that determines the dynamics.en
dc.format.mediumelectronicen
dc.language.isoengen
dc.rightsCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en
dc.subject.lcshLattice dynamicsen
dc.subject.lcshAtomsen
dc.subject.lcshHamiltonian systemsen
dc.titleCoherent control of cold atoms in a[n] optical latticeen
dc.description.departmentPhysicsen
dc.identifier.oclc174115296en
dc.type.genreThesisen
thesis.degree.departmentPhysicsen
thesis.degree.disciplinePhysicsen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophyen


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