The magneto-optical trap (MOT) has been an important tool in quantum optics research for three decades. MOTs allow for hundreds of thousands to millions of atoms to be cooled to micro-Kelvin temperatures for use in a wide variety of experiments. For nearly as long, MOTs with just a single atom have been of some interest to the research community. We have developed an algorithm, based on Bayesian statistics, to carefully measure small numbers of atoms in a MOT.
Many techniques have been developed to measure the temperature of atoms in a MOT, including some that can translate to single atoms. We propose a new technique to measure the temperature of a single atom without releasing the atom from the MOT. Temporal modulations in a spatially dependent magnetic field encode information about the position of an atom through associated variation in its fluorescence rate. Measuring this variation reveals the atom's position distribution and therefore its temperature. The technique is examined for a variety of MOT parameters. Measurements with the technique are an order of magnitude larger than predicted by theory and potential routes for future study are offered.
|Advisor:||Steck, Daniel A.|
|Commitee:||Raymer, Michael, Aleman, Benjamin, Nazin, George|
|School:||University of Oregon|
|Department:||Department of Physics|
|School Location:||United States -- Oregon|
|Source:||DAI-B 81/2(E), Dissertation Abstracts International|
|Keywords:||Magneto-optical trap, Quantum optics, Temperature of atoms|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be