Axial to transverse energy mixing dynamics in octupole-based magnetostatic antihydrogen traps
Abstract
The nature of the trajectories of antihydrogen atoms confined in an octupole minimum-B trap is of great importance for upcoming spectroscopy, cooling, and gravity experiments. Of particular interest is the mixing time between the axial and transverse energies for the antiatoms. Here, using computer simulations, we establish that almost all trajectories are chaotic, and then quantify the characteristic mixing time between the axial and transverse energies. Furthermore, we find that there are two classes of trajectories: for trajectories whose axial energy is higher than about 20% of the total energy, the axial energy substantially mixes within about 10 s, whereas for trajectories whose axial energy is lower than about 10% of the total energy, the axial energy remains nearly constant for 1000 s or longer.
- Publication Date:
- Research Org.:
- Univ. of California, Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1437847
- Alternate Identifier(s):
- OSTI ID: 1500086
- Grant/Contract Number:
- FG02-06ER54904
- Resource Type:
- Published Article
- Journal Name:
- New Journal of Physics
- Additional Journal Information:
- Journal Name: New Journal of Physics Journal Volume: 20 Journal Issue: 5; Journal ID: ISSN 1367-2630
- Publisher:
- IOP Publishing
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; antihydrogen; minimum-B trap; octupole; orbit dynamics; chaos
Citation Formats
Zhong, M., Fajans, J., and Zukor, A. F. Axial to transverse energy mixing dynamics in octupole-based magnetostatic antihydrogen traps. United Kingdom: N. p., 2018.
Web. doi:10.1088/1367-2630/aabb84.
Zhong, M., Fajans, J., & Zukor, A. F. Axial to transverse energy mixing dynamics in octupole-based magnetostatic antihydrogen traps. United Kingdom. https://doi.org/10.1088/1367-2630/aabb84
Zhong, M., Fajans, J., and Zukor, A. F. Tue .
"Axial to transverse energy mixing dynamics in octupole-based magnetostatic antihydrogen traps". United Kingdom. https://doi.org/10.1088/1367-2630/aabb84.
@article{osti_1437847,
title = {Axial to transverse energy mixing dynamics in octupole-based magnetostatic antihydrogen traps},
author = {Zhong, M. and Fajans, J. and Zukor, A. F.},
abstractNote = {The nature of the trajectories of antihydrogen atoms confined in an octupole minimum-B trap is of great importance for upcoming spectroscopy, cooling, and gravity experiments. Of particular interest is the mixing time between the axial and transverse energies for the antiatoms. Here, using computer simulations, we establish that almost all trajectories are chaotic, and then quantify the characteristic mixing time between the axial and transverse energies. Furthermore, we find that there are two classes of trajectories: for trajectories whose axial energy is higher than about 20% of the total energy, the axial energy substantially mixes within about 10 s, whereas for trajectories whose axial energy is lower than about 10% of the total energy, the axial energy remains nearly constant for 1000 s or longer.},
doi = {10.1088/1367-2630/aabb84},
journal = {New Journal of Physics},
number = 5,
volume = 20,
place = {United Kingdom},
year = {2018},
month = {5}
}
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https://doi.org/10.1088/1367-2630/aabb84
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Works referencing / citing this record:
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