Theory and application of planar ion traps

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.

Bibliographic Details
Main Author: Pearson, Christopher Elliott
Other Authors: Isaac L. Chuang.
Format: Thesis
Language:eng
Published: Massachusetts Institute of Technology 2007
Subjects:
Online Access:http://hdl.handle.net/1721.1/36398
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author Pearson, Christopher Elliott
author2 Isaac L. Chuang.
author_facet Isaac L. Chuang.
Pearson, Christopher Elliott
author_sort Pearson, Christopher Elliott
collection MIT
description Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.
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spelling mit-1721.1/363982019-04-12T09:23:24Z Theory and application of planar ion traps Pearson, Christopher Elliott Isaac L. Chuang. Massachusetts Institute of Technology. Dept. of Physics. Massachusetts Institute of Technology. Dept. of Physics. Physics. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Physics, 2006. This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. Includes bibliographical references (p. 101-106). In this thesis, we investigate a new geometry of Paul trap with electrodes in a plane. These planar ion traps are compatible with modern silicon microfabrication, and can be scaled up to large arrays with multiple trapping zones. We implement these designs on printed circuit boards with macroscopic ions, allowing us to study the traps while avoiding the experimental challenges of atomic ion traps. We discuss the dynamics of ions in the traps using both numerical and analytical means. Scalable traps are of interest to the quantum computing community as a potential implementation of a large scale quantum computer. However, there are concerns about the low trap depth relative to a conventional trap of the same size. We address this in three ways, first by introducing a conductive plane above the trap to increase its depth, then by using a deeper trap with a three dimensional electrode geometry to load the trap, and finally by loading the trap directly while using a buffer gas to slow down energetic ions so that the trap can capture them. Also of concern is the ability of the trap to move ions through arms and intersections. (cont.) We demonstrate these movement operations, and study properties of the linear trap including the secular frequency and geometric factors between planar and four rod traps. The precision of atomic ion trap experiments makes them sensitive to background gas pressure at levels that are undetectable to conventional gauges. The capacity for integrating circuitry and optical elements with the trap could anticipate complete ion trap experiments performed by a single chip, and a new technology for an integrated pressure gauge would be immensely useful if the pressure detection can shown to be feasible and repeatable. In a point planar trap, we observe ion motion to determine background gas pressure, demonstrating an application that could bring planar ion traps into much wider use. by Christopher Elliott Pearson. S.M. 2007-03-09T18:55:07Z 2007-03-09T18:55:07Z 2006 2006 Thesis http://hdl.handle.net/1721.1/36398 82369146 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 106 p. application/pdf Massachusetts Institute of Technology
spellingShingle Physics.
Pearson, Christopher Elliott
Theory and application of planar ion traps
title Theory and application of planar ion traps
title_full Theory and application of planar ion traps
title_fullStr Theory and application of planar ion traps
title_full_unstemmed Theory and application of planar ion traps
title_short Theory and application of planar ion traps
title_sort theory and application of planar ion traps
topic Physics.
url http://hdl.handle.net/1721.1/36398
work_keys_str_mv AT pearsonchristopherelliott theoryandapplicationofplanariontraps