Cyclotron dynamics of neutral atoms in optical lattices with additional magnetic field and harmonic trap potential

2020 ◽  
Vol 29 (1) ◽  
pp. 010307
Author(s):  
Ai-Xia Zhang ◽  
Ying Zhang ◽  
Yan-Fang Jiang ◽  
Zi-Fa Yu ◽  
Li-Xia Cai ◽  
...  
Author(s):  
Iannis Dandouras ◽  
Philippe Garnier ◽  
Donald G Mitchell ◽  
Edmond C Roelof ◽  
Pontus C Brandt ◽  
...  

Titan's nitrogen-rich atmosphere is directly bombarded by energetic ions, due to its lack of a significant intrinsic magnetic field. Singly charged energetic ions from Saturn's magnetosphere undergo charge-exchange collisions with neutral atoms in Titan's upper atmosphere, or exosphere, being transformed into energetic neutral atoms (ENAs). The ion and neutral camera, one of the three sensors that comprise the magnetosphere imaging instrument (MIMI) on the Cassini/Huygens mission to Saturn and Titan, images these ENAs like photons, and measures their fluxes and energies. These remote-sensing measurements, combined with the in situ measurements performed in the upper thermosphere and in the exosphere by the ion and neutral mass spectrometer instrument, provide a powerful diagnostic of Titan's exosphere and its interaction with the Kronian magnetosphere. These observations are analysed and some of the exospheric features they reveal are modelled.


2016 ◽  
Vol 380 (5-6) ◽  
pp. 789-793
Author(s):  
Zi-Fa Yu ◽  
Fang-Qi Hu ◽  
Ai-Xia Zhang ◽  
Ju-Kui Xue
Keyword(s):  

2011 ◽  
Vol 738 (1) ◽  
pp. 29 ◽  
Author(s):  
J. Heerikhuisen ◽  
N. V. Pogorelov
Keyword(s):  

1998 ◽  
Vol 1 (1) ◽  
pp. 33-45 ◽  
Author(s):  
C. Mennerat-Robilliard ◽  
L. Guidoni ◽  
K.I. Petsas ◽  
P. Verkerk ◽  
J.-Y. Courtois ◽  
...  

2004 ◽  
Vol 18 (09) ◽  
pp. 1235-1260 ◽  
Author(s):  
ANDREY R. KOLOVSKY ◽  
HANS JÜRGEN KORSCH

This work is devoted to Bloch oscillations (BO) of cold neutral atoms in optical lattices. After a general introduction to the phenomenon of BO and its realization in optical lattices, we study different extentions of this problem, which account for recent developments in this field. These are two-dimensional BO, decoherence of BO, and BO in correlated systems. Although these problems are discussed in relation to the system of cold atoms in optical lattices, many of the results are of general validity and can be well applied to other systems showing the phenomenon of BO.


2010 ◽  
Vol 102-104 ◽  
pp. 407-411 ◽  
Author(s):  
Guo Ji Zhao ◽  
Qian Luo ◽  
Xiang Jie Wang ◽  
Jian Luo

Numerical simulation and deposited experiment of MAG welding are carried out on the conditions of Electro-Magnetic Stirring (EMS) in this paper. Based on the research of EMS welding arc action, a simple EMS-MAG welding Gaussian distribution model using whole heat flux density is established, which MAG welding arc and droplet transfer are regarded as one integrated system. The important additional magnetic field parameter in EMS-MAG surfacing deposited welding is considered in this model. The computer-aided arc measurement system is used to analyze the effects of additional magnetic field in MAG welding. Effects of excitation current on welding penetration and width are analyzed by deposited experiments. Many deposited experiments are used to adjust model parameters and verify the simulation results. By defining key parameter and optimizing the model on the basis of experimental data, it can improve the simulation accuracy effectively. The results show that the established Gaussian distribution model can be used to simulate EMS-MAG welding process.


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