scholarly journals Brownian Motion of Charged Particles in a Bath Responding to an External Magnetic Field

2020 ◽  
Vol 137 (5) ◽  
pp. 657-659 ◽  
Author(s):  
V. Lisý ◽  
J. Tóthová
2007 ◽  
Vol 16 (08) ◽  
pp. 1369-1379
Author(s):  
R. KAYA

We study the effect of an external magnetic field on the stability of circular motion of charged particles in the equatorial plane of a five-dimensional rotating black hole. Using the Hamilton–Jacobi formalism, we derive the effective potential for the radial motion of test particles around a five-dimensional magnetized Myers–Perry black hole. We show that there exist stable circular orbits in equatorial planes in the background of this metric.


2021 ◽  
Vol 76 (1) ◽  
Author(s):  
K.N. Dzhumagulova ◽  
T.S. Ramazanov ◽  
R.U. Masheeva ◽  
M. Myrzaly ◽  
E.O. Shalenov ◽  
...  

2020 ◽  
pp. 73-77
Author(s):  
V.А. Buts ◽  
V.V. Kuzmin ◽  
A.P. Tolstoluzhsky

The possibilities and conditions of effective interaction, in particular acceleration, of charged particles by the field of an intense plane electromagnetic wave in the presence of an external constant magnetic field are considered. It is shown that the well-known conditions of cyclotron resonances require generalization. New conditions for the resonant interaction of charged particles are formulated, which contain not only the strength of the external magnetic field (as the well-known conditions of cyclotron resonances) but also the field strength of the wave. Cases of both small wave field strengths, so large, are considered. It is shown that new resonance conditions open up new possibilities for effective particle acceleration.


2015 ◽  
Vol 35 (6) ◽  
pp. 587-596 ◽  
Author(s):  
Saeide S. Badieyan ◽  
Mohsen Janmaleki

Abstract Electrospinning is an efficient, versatile, and straightforward technique involving the fabrication of very thin fibers from a rich variety of materials. Despite several promising applications, the remaining problem with electrospinning is the unpredictable deposition of the nanofibers. In this study, a mathematical model for a novel magnetic electrospinning process was established on the basis of a set of equations. Then, the model was utilized to analyze the behavior of the created polymer jet numerically using the Runge-Kutta method. The jet was assumed to consist of a number of discrete charged particles connected by viscoelastic segments. The results showed that exerting an appropriate magnetic field (MF) could significantly decrease the radius and the instability of the whipping circles. After fixing the instability as far as possible, it was demonstrated that a properly applied perpendicular MF could largely adjust the target of the polymer jet on the collector.


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