A1 Refereed original research article in a scientific journal
A magneto-gravitational trap for studies of gravitational quantum states
Authors: V. V. Nesvizhevsky, F. Nez, S. A. Vasiliev, E. Widmann, P. Crivelli, S. Reynaud, A. Yu. Voronin
Publisher: SPRINGER
Publication year: 2020
Journal: European Physical Journal C: Particles and Fields
Journal name in source: EUROPEAN PHYSICAL JOURNAL C
Journal acronym: EUR PHYS J C
Article number: ARTN 520
Volume: 80
Issue: 6
Number of pages: 10
ISSN: 1434-6044
eISSN: 1434-6052
DOI: https://doi.org/10.1140/epjc/s10052-020-8088-2
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/50117700
Observation time is the key parameter for improving the precision of measurements of gravitational quantum states of particles levitating above a reflecting surface. We propose a new method of long confinement in such states of atoms, anti-atoms, neutrons and other particles possessing a magnetic moment. The earth gravitational field and a reflecting mirror confine particles in the vertical direction. The magnetic field originating from electric current passing through a vertical wire confines particles in the radial direction. Under appropriate conditions, motions along these two directions are decoupled to a high degree. We estimate characteristic parameters of the problem, and list possible systematic effects that limit storage times due to the coupling of the two motions.
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