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dc.contributor.authorBlackburn, Paul W.
dc.date.accessioned2012-07-02T20:14:26Z
dc.date.available2012-07-02T20:14:26Z
dc.date.issued2012-07-02
dc.date.submittedMay 2012
dc.identifier.urihttp://hdl.handle.net/1928/20756
dc.description.abstractA dilute gas Bose Einstein condensate (BEC) is a state of matter that occurs when a cloud of atoms in a potential are made cold and dense enough that they all occupy the potential's ground state. The onset of this phenomenon occurs when their de Broglie wavelength, $\Lambda = \sqrt{2 \pi \hbar^2/mk_BT}$, becomes comparable in size to the inter-particle spacing. A BEC is a macroscopic quantum object, since all atoms in the BEC are described by a single quantum wavefunction and, as such, is a fundamental quantum many-body system. The first experimental demonstration of a dilute gas BEC was performed by Eric Cornell and Carl Wieman in 1995 and since then, several dozen groups around the world have achieved and study BECs. This thesis documents design and construction work performed in support of the Bose Einstein Condensate (BEC) experiment at the Los Alamos National Laboratory. The objective of the work performed was to upgrade the existing BEC machine in most of its significant subsystems to attain better experimental cycle times and BECs with a larger atom number than what was previously attainable, as well as improve the optical quality of the imaging and laser manipulation beams at the location of the BEC. These objectives were achieved through the construction of a new laser system with greater power and larger magneto-optical trap (MOT) beam diameters, a new quadrupole magnetic trap with better optical access and higher magnetic field gradients than the Ioffe-Pritchard coil configuration it replaced, and a cuvette-style quartz cell with a much higher optical quality than the hand-blown cell used previously. In addition to these improvements the feasibility of using phase-contrast imaging of the BECs created in this machine for future experimental goals was evaluated and found to be feasible.en_US
dc.description.sponsorshipDepartment of Energy/Los Alamos National Laboratoryen_US
dc.language.isoen_USen_US
dc.subjectbecen_US
dc.subjectbose einstein condensateen_US
dc.subjectphase contrast imagingen_US
dc.subjectrubidiumen_US
dc.subject.lcshBose-Einstein condensation.
dc.subject.lcshGas condensers.
dc.subject.lcshPhase-contrast microscopy.
dc.titleDesign and construction of a Bose Einstein condensate machineen_US
dc.typeThesisen_US
dc.description.degreePhysicsen_US
dc.description.levelMastersen_US
dc.description.departmentUniversity of New Mexico. Dept. of Physics & Astronomyen_US
dc.description.advisorDeutsch, Ivan
dc.description.committee-memberWolfgang, Rudolph
dc.description.committee-memberBoshier, Malcolm


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