simultaneous ion-neutral trapping and applications alex povilus jae choi eberhard hansis georg...
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![Page 1: Simultaneous Ion-Neutral Trapping and Applications Alex Povilus Jae Choi Eberhard Hansis Georg Raithel REU-2004 – 7/28/2004](https://reader031.vdocuments.us/reader031/viewer/2022013012/5697bfe91a28abf838cb6ddc/html5/thumbnails/1.jpg)
Simultaneous Ion-Neutral Trapping and Applications
Alex PovilusJae Choi
Eberhard HansisGeorg Raithel
REU-2004 – 7/28/2004
![Page 2: Simultaneous Ion-Neutral Trapping and Applications Alex Povilus Jae Choi Eberhard Hansis Georg Raithel REU-2004 – 7/28/2004](https://reader031.vdocuments.us/reader031/viewer/2022013012/5697bfe91a28abf838cb6ddc/html5/thumbnails/2.jpg)
-Three-body recombination studies-High angular momentum states likely-Reevaluate traditional Penning trap
dynamics (symmetry)-Eye towards Anti-Hydrogen Production
Motivation
"For me, the most attractive way ... would be to capture the antihydrogen in a neutral particle trap ... The objective would be to then study the properties of a small number of [antihydrogen] atoms confined in the neutral trap for a long time." -Gerald Gabrielse, 1986 Erice Lecture (shortly after first trapping of antiprotons)
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Requirements of Techniques
Incompatible Trapping Techniques?
Ion Trapping (Penning)
-Homogeneous B Field
-Electrostatic Potential Well
Neutral Trapping (Ioffe)
-Magnetic Field Minimum (H=μ·B and adiabatic approx.)
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Apparatus
Internal Electrodes
Superconducting Atom Trap (2.9 Tesla)
Cryo-chamber at 4K
Optical Trapping Techniques
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Electron Motion/ Simulations
Sample electron oscillations expected in the system without and with quadrupole magnetic field perturbations.
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Experimental Results
Ion-Neutral Trapping Observed ( ≈ 50 sec) at Low Density (105 e-/cm3)
Temperature of Sample Measurement: ~4K
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Applications of Technique
Three Body Recombination: High Angular Momentum State Generation:
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Haiku and References
Ions and Neutrals
My fields can contain them both
Maybe together
(1) Squires, Yesley, and Gabrielse, Phys Rev Letters 86, 5266
(2) Bagnato, Lafyatis, Martin, Raab, Ahmad-Bitar, and Pritchard, Phys Rev Letters 58, 2194
(3) Brown and Gabriese, Geonium theory: Physics of a single electron or ion in a Penning trap
(4) Gilson and Fajans, Phys. Rev. Letters 90, 15001-1