A magneto-gravitational trap for studies of gravitational quantum states

被引：6
|
作者：
Nesvizhevsky, V. V. [1 ]
Nez, F. [2 ]
Vasiliev, S. A. [3 ]
Widmann, E. [4 ]
Crivelli, P. [5 ]
Reynaud, S. [2 ]
Voronin, A. Yu [6 ]
机构：
[1] Inst Max von Laue, 71 Ave Martyrs, F-38042 Grenoble, France
[2] Sorbonne Univ, CNRS, Lab Kastler Brossel, ENS,PSL Univ,Coll France, F-75252 Paris, France
[3] Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland
[4] Austrian Acad Sci, Stefan Meyer Inst Subat Phys, Boltzmanngasse 3, A-1090 Vienna, Austria
[5] ETH, Inst Particle Phys & Astrophys, CH-8093 Zurich, Switzerland
[6] Lebedev Inst, 53 Leninsky Pr, Moscow 119333, Russia
来源：
EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 06期
基金：
芬兰科学院;
关键词：
BOSE-EINSTEIN CONDENSATION; RESONANCE-SPECTROSCOPY; ULTRACOLD NEUTRONS; FIELD; GRAVITY; ATOMS; RANGE; WELL;
D O I：
10.1140/epjc/s10052-020-8088-2
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
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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页数：10
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