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 20 of 130 for “"Atomic Physics"”.
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Mathematical methods in atomic physics = Métodos matemáticos en física atómica
Los problemas de dispersión de partículas, como son los de dos y tres cuerpos, tienen una relevancia crucial en física atómica, pues permiten describir diversos procesos de colisiones. Hoy en día, los casos de dos cuerpos pueden ser resueltos con el grado de precisión numérica que se desee. Los …
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Theoretical studies at the interface of atomic physics and precision measurements
Hyperfine structure (HFS) of atomic energy levels arises due to interactions of atomic electrons with a hierarchy of nuclear multipole moments, including magnetic dipole, electric quadrupole, and higher-rank moments. Recently, a determination of the magnetic octupole moment of the …
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An approach to bridging atom optics and bulk spin quantum computation
… an exploration in quantum computation and modern physics. Atomic, molecular, and optical (AMO) physics, a centerpiece of modern physics, originated in the 1950's with the discovery of nuclear magnetic resonance (NMR), a field which has mostly been left behind in physics. However, NMR has recently …
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MEMS enabled Fabry-Perot cavity for cQED experiments
… development of novel experimental techniques in atomic physics is allowing for the manipulation and control of atoms in structured silicon chips. These new techniques to manipulate atoms in a chip require building micro systems on chip that support actuation, alignment control and tunability for …
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Microscopic Simulations of Strongly Paired Fermions
… to neutron matter, in the hope that the atomic physics predictions can help to constrain nuclear theory.
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From atoms to astronomy : new approaches in neutrino physics
In this thesis I present research in neutrino physics utilizing tools from both atomic physics and astrophysics. Recent advances in atomic physics enable a new type of beta decay experiment to measure the absolute mass scale of the neutrino using a sample of ultracold atomic tritium. These initial …
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Creation of an all-optical Bose-Einstein condensate
… a historical introduction to the topics of atomic physics, ultracold atoms in optical lattices and quantum simulation, we provide a basic summary on atomic physics and laser cooling. It is followed by a description of the experimental setup. The following chapters detail the cooling and …
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Forward Light Scattering in an Extended Sample of Cold Atoms
… results on the forward emitted light from a cold atomic sample of 87Rb. Specifically,we study single-photon superradiance which is characterized by a rapid decay faster than the single atom lifetime with the light preferentially emitted in the forward direction. Additionally, we report …
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Automated Fiber Coupling with Actuated Mirrors
Almost all atomic physics experiments rely on precise alignment of lasers. For example, optical fields are used to cool, control, and image atoms in neutral atom arrays. In this thesis, we present a design for mirrors actuated by servos that allow the precise, repeatable alignment of lasers in free …
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Narrow frequency-band laser with optical feedback
… discuss potential uses of the narrow laser in atomic physics experiments, including detection of a single atom in an optical cavity.
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Progress Towards a Spinor Bose-Einstein Condensate Machine
… particles has become a major area of research in atomic physics with the discovery of the first Bose-Einstein condensates (BECs) in 1995. These ultracold atomic vapors allow for study of fundamental quantum electromagnetic properties of atoms that are otherwise inaccessible due to large thermal …
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Magnetic super-exchange with ultra cold atoms in spin dependent optical lattices
The methods of atomic physics offer a unique opportunity to study strongly correlated many body systems. It is possible to confine BECs in periodic optical lattices to form an analog of a solid state system. The study of these cold atoms in optical lattice systems may prove a very useful testing …
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Observation of the Nuclear Magnetic Octupole Moment of 137Ba+
… trapped ions are ideal systems in which to test atomic physics at high precision, which can in turn be used for searches for violations of fundamental symmetries and physics beyond the standard model, in addition to quantum computation and a number of other applications. The ion is confined in …
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Light Scattering in Ultracold High Density Rubidium Vapor
… world full of new opportunities for research in atomic, molecular and optical physics as well as condensed matter physics. It became possible to do experiments under conditions that are hard to achieve in condensed matter systems but recently have been observed in atomic systems. Bose Einstein …
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The design and construction of a constant acceleration drive system for Mössbauer experiments
… not possible in nuclear-. Solid taste-, and atomic physics; chemistry; and biology.</p><p>It is the purpose of this research project to design and build a Mössbauer effect apparatus.</p>
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Coupled Molecular Dynamics and Finite Element Methods for the simulation of interacting particles and fields
… technique in many fields: e.g. nuclear and atomic physics, computational material science, computational chemistry, molecular biology and pharmacology. Under the locution Molecular Dynamics (MD) we can regroup a variety of approaches and numerical codes, whereas the commonalities are: 1) the …
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Tunneling in Degenerate Atomic Gases
… of Bose-Einstein condensation in cold alkali atomic gases in 1995 has started a period of fertile research at the intersection of atomic physics, quantum optics, and condensed matter. In this thesis, various tunneling effects in both bosonic and fermionic gases are investigated. The first part …
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Experiments with interacting Bose and Fermi gases
… one of the most exciting branches of current atomic physics research. This thesis covers experiments done throughout this period, which can be grouped in three sets of studies. First, degenerate 6Li Fermi gases have been produced by sympathetic cooling with bosonic 23Na. For this, an existing …
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Probing and preparing novel states of quantum degenerate rubidium atoms in optical lattices
… matter with the control and precision offered by atomic physics. Towards this goal, as important as engineering new states of matter is the need to develop new techniques to probe these systems. I first describe our work on realizing Bragg scattering of infrared light from ultracold atoms in …
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Computational study of hot electron generation and energy transport in intense laser produced hot dense matter
… states is par- ticularly interesting for (HED) physics such as laboratory studies of planetary and stellar astrophysics, laser fusion research, pulsed neutron source etc. To date however, the physics in HED plasma, especially, the energy transport, which is crucial to re- alize applications, has …
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