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 17 of 17 for “"Atom interferometry"”.
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Atom interferometry with phase-masked optical fields
… induced spin excitation for applications to atom interferometry for lithography and rotation sensing. Our efforts have been grouped into two parts: theoretical study of schemes for nanolithography, and experimental investigation of novel schemes for rotation sensing. For lithography, we have …
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Photon induced coherence loss in atom interferometry
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1995.
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Light pulse atom interferometry at short interrogation times for inertial navigation
Light pulse atom interferometry with cold atoms is a promising inertial sensing technology for high accuracy navigation. At present, laboratory atom interferometers match or surpass state of the art mechanical and optical inertial sensors in terms of sensitivity and long term stability. …
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Atom interferometry--dispersive index of refraction and rotation induced phase shifts for matter-waves
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1997.
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Experiments with Bose-Einstein condensates in a double-well potential
Trapped atom interferometry was demonstrated with Bose-Einstein condensates in an optical double-well trap. Coherent splitting of trapped condensates was performed by deforming an optical single-well potential into a double-well potential, and the relative phase of the two split condensates was …
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Timekeeping and accelerometry with robust light pulse atom interferometers
Light pulse atom interferometry (LPAI) is a powerful technique for precision measurements of inertial forces and time. Laboratory LPAI systems currently achieve state-ofthe- art acceleration sensitivity and establish the international atomic time standard. However, the realization of practical LPAI …
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A tunable Bose-Einstein condensate for quantum interferometry
The subject of this thesis is the use of BECs for atom interferometry. The standard way atom interferometry is today performed is by interrogating free falling samples of atoms. The employed samples are cold (but not condensed) to have high coherence, and dilute, not to interact significantly with …
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Ultracold rubidium and potassium system for atom chip-based microwave and RF potentials
… and RF near-field potentials for use with atom chip trapped atomic gases. These potentials are inherently spin-dependent, able to target individual spin states simultaneously. In contrast with traditional atom chip potentials, these RF traps can be operated at arbitrary bias magnetic field …
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Tune-out Wavelength Measurement and Gyroscope Using Dispersion Compensation in an Atom Interferometer
… how I used a three nanograting Mach-Zehnder atom beam interferometer to precisely measure a wavelength of light, known as a tune-out wavelength, that causes zero energy shift for an atom. I also describe how such measurements can be remarkably sensitive to rotation rates. It is well known …
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Nonlinear dynamics of a matter-wave soliton in driven potentials
… a Bose-Einstein condensate with attractive interatomic interactions, confined by a one dimensional harmonic or double-well trapping potential, and subject to weak periodic driving. Such systems have potential applications in metrology, specifically in the use of atom interferometers for high …
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Nonlinear dynamics of a matter-wave soliton in driven potentials
… a Bose-Einstein condensate with attractive interatomic interactions, confined by a one dimensional harmonic or double-well trapping potential, and subject to weak periodic driving. Such systems have potential applications in metrology, specifically in the use of atom interferometers for high …
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Topics in Spin-Orbit Coupling in Cold Atoms and Semiconductors
… of topics on the spin-orbit coupling of cold atoms and semiconductors. We first consider the effects of an optically induced spin-orbit interaction on a system of Bosonic atoms. The spin-orbit term couples the emergent pseudo-spin- 1/2 degree of freedom to momentum. The single particle energy …
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Trapping and Cooling of Bosonic Strontium for a Long-Baseline Atomic Interferometer Observatory and Network (AION)
The Atom Interferometry Observatory and Network (AION), a consortium of UK institutes, is developing a long-baseline atom interferometer to search for fundamental physics beyond the standard model, such as decihertz gravitational waves, scalar and vector-ultralight dark matter, fifth-force, and …
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Spin-mixing and Interferometry in Microwave-dressed Sodium Spinor Bose-Einstein Condensates
… thesis presents my research on spin-mixing and interferometry in an all-optically generated spinor Bose-Einstein condensate (BEC) of sodium atoms. The sodium atoms are loaded from a magneto-optical trap into a crossed optical dipole trap and are subsequently evaporatively cooled down to quantum …
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Magnetic fields near microstructured surfaces : application to atom chips
Microfabricated solid-state surfaces, also called atom chip', have become a well-established technique to trap and manipulate atoms. This has simplified applications in atom interferometry, quantum information processing, and studies of many-body systems. Magnetic trapping potentials with arbitrary …
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Towards an integrated atom chip
The field of atom chips is a relatively new area of research which is rapidly becoming of great interest to the scientific community. It started out as a small branch of cold atom physics which has quickly grown into a multidisciplinary subject. It now encompasses topics from fundamental atomic and …