Axial to transverse energy mixing dynamics in octupole-based magnetostatic antihydrogen traps

Zhong, M.; Fajans, Joel; Zukor, A. F.

doi:10.1088/1367-2630/aabb84

Title: Axial to transverse energy mixing dynamics in octupole-based magnetostatic antihydrogen traps

Journal Article · 02 May 2018 · New Journal of Physics

DOI: https://doi.org/10.1088/1367-2630/aabb84 · OSTI ID:1437847

Zhong, M. ^[1];

^[1]; Zukor, A. F. ^[2]

Univ. of California, Berkeley, CA (United States)
Bentley Upper School, Lafayette, CA (United States)

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.

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Research Organization:: University of California, Berkeley, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: FG02-06ER54904

OSTI ID:: 1437847

Alternate ID(s):: OSTI ID: 1500086

Journal Information:: New Journal of Physics, Vol. 20, Issue 5; ISSN 1367-2630

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 4 works

Citation information provided by
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Cited By (2)

Simulations of Majorana spin flips in an antihydrogen trap Alarcón, M. A.; Riggert, C. J.; Robicheaux, F. Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 52, Issue 15 https://doi.org/10.1088/1361-6455/ab29aa	journal	July 2019
Simulations of Majorana spin flips in an antihydrogen trap Alarcón, M. A.; Riggert, C. J.; Robicheaux, F. arXiv https://doi.org/10.48550/arxiv.1903.11443	text	January 2019

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
antihydrogen
minimum-B trap
octupole
orbit dynamics
chaos

Title: Axial to transverse energy mixing dynamics in octupole-based magnetostatic antihydrogen traps

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