Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Ion trapping"”.
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An injection-locked 674 nm laser for Strontium-88 ion trapping
… the valence electron of a single trapped ⁸⁸Sr+ ion can be harnessed as an effective qubit for quantum information processing. The qubit transition to a metastable energy state can be stimulated by a laser at a frequency of 444.779044 THz. A laser beam with higher intensity causes more rapid …
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Surface trap for ytterbium ions
… conducted an experiment to load a shallow planar ion trap from a cold atom source of Ytterbium using photoionization. The surface trap consisted of a three-rod radio frequency Paul trap fabricated using standard printed circuit board techniques. The cold atom source was an isotope-selective …
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Arachidonate oxidation metabolite profiles for myoglobin and a structurally altered form of myoglobin produced in muscle disease or trauma
… (GPC) lipid in the presence of oxygen. This reaction allows the heme group in the protein the chance to induce peroxidation reactions with the lipid. Several aldehyde products of this type of reaction with arachadonic acid have previously been determined, with Mb generating greater quantities of …
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Shuttling of ions for characterization of a microfabricated ion trap
… results demonstrating the characterization of a planar Paul trap. I discuss the theory of ion trapping and analyze the voltages required for shuttling. Next, the characteristics of a digital-to-analog converter (DAC) are calibrated, and this instrument is integrated into trapping …
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An Electron Target for Collision Experiments with Trapped Ions
An Electron Target for Collision Experiment with Trapped Ions An experiment to study electron collisions on stored molecular ions has been built within the framework of this thesis. Ions are stored in a trap with a kinetic energy of several keV between two electrostatic mirrors. The stored ions are …
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Development of a quadrupole ion trap / time-of-flight mass spectrometer for mass resolution and ion photophysics
… mass spectrometer, consisting of a quadrupole ion trap (QIT) and a time-of-flight, is described for ion mass resolution and photophysics. Ions are generated externally by electrospray ionization and trapped in the quadrupole ion trap before extraction to the time-of-flight section for mass …
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Optimizing Ion-Shuttling Operations in Trapped-Ion Quantum Computers
Trapped ions are a promising candidate for quantum computation. As experiments with ions increase in size and complexity, a trap array-based architecture for an ion trap with many independent zones provides a path towards large-scale integration. A crucial element in the operation of a trap array …
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IN SITU PLASMA REMOVAL OF SURFACE CONTAMINANTS FROM ION TRAP ELECTRODES
In this thesis, the construction and implementation of an in situ plasma discharge designed to remove surface contaminants from electrodes in an ion trapping experimental system is presented with results. In recent years, many advances have been made in using ion traps for quantum information …
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Surface Friction and Spectroscopic Probes of New Physics with Trapped Ions
To trap a single ion under vacuum is to control a microscopic, isolated quantum laboratory. This thesis describes two research programs made possible by single-ion trapping of Yb⁺. The first program is a study of a paradigmatic frictional interface: a trapped ion transported along a one-dimensional …
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Interaction of trapped ions with trapped atoms
… I present results from two Paul-trap based ion traps carried out in the Vuletić laboratory: the Atom-Ion trap for collision studies between cold atoms and cold ions, and the Cavity-Array trap for studying the interaction between ionic ensembles and photons. The Atom-Ion trap overlaps a …
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Trapping, laser cooling, and spectroscopy of Thorium IV
Application of precision laser spectroscopy and optical clock technology to the ground and metastable, first excited state of the ²²⁹Th nucleus at < 10 eV has significant potential for use in optical frequency metrology and tests of variation of fundamental constants. This work is a report on the …
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Novel In-Vitro Approaches to Investigate Membrane Partitioning and pH-Dependent Passive Permeation of Small Molecule Drugs
… important process that involves the partitioning of molecules into the lipid bilayer membrane and passive permeation across the membrane. The majority of the drug molecules are either weak bases or acids. For these drugs, along with lipophilicity and other physicochemical properties, the …
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Mixed Species Ion Chains for Scalable Quantum Computation
Mixed species chains of barium and ytterbium ions are investigated as a tool for building scalable quantum computation devices. Ytterbium ions provide a stable, environmentally-insensitive qubit that is easily initialized and manipulated, while barium ions are easily entangled with photons that can …
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Investigation and control of two-dimensional Coulomb crystals for atom-ion mixtures
L'abstract è presente nell'allegato / the abstract is in the attachment