A magneto-gravitational trap for studies of gravitational quantum states



: V. V. Nesvizhevsky, F. Nez, S. A. Vasiliev, E. Widmann, P. Crivelli, S. Reynaud, A. Yu. Voronin

Publisher: SPRINGER

: 2020

: European Physical Journal C: Particles and Fields

: EUROPEAN PHYSICAL JOURNAL C

: EUR PHYS J C

: ARTN 520

: 80

: 6

: 10

: 1434-6044

: 1434-6052

DOI: https://doi.org/10.1140/epjc/s10052-020-8088-2(external)

: https://research.utu.fi/converis/portal/detail/Publication/50117700(external)


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.

Last updated on 2024-26-11 at 17:32