Related Experiment Video
Updated: Jul 14, 2026
11:20
Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
Published on: July 2, 2012
Relativistic solitons in magnetized plasmas
1Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, 20125 Milan, Italy.
Summary
Externally imposed magnetic fields significantly alter relativistic solitons in plasma. Stable, high-energy magnetized solitons can form, differing from predictions for unmagnetized plasmas.
Area of Science:
- Plasma Physics
- Nonlinear Optics
- Computational Physics
Background:
- Relativistic solitons are crucial in plasma physics and nonlinear optics.
- Previous theories primarily addressed unmagnetized plasma conditions.
- The effect of magnetic fields on intense solitons was not fully understood.
Purpose of the Study:
- To investigate the properties of one-dimensional solitons in magnetized plasmas.
- To compare findings with unmagnetized plasma theory.
- To determine the parameter space for magnetized soliton existence.
Main Methods:
- Analytical investigations of soliton properties.
- Numerical simulations of soliton behavior.
- Comparison with established unmagnetized plasma theories.
Main Results:
- A uniform longitudinal magnetic field impacts relativistic soliton properties.
- The existence region for magnetized solitons was analytically determined.
- New conditions for soliton breaking due to density depletion were identified.
- Stable, high-energy magnetized solitons were shown to be producible.
Conclusions:
- Magnetized solitons exhibit distinct properties compared to their unmagnetized counterparts.
- The study defines the conditions for stable magnetized soliton formation.
- Findings advance the understanding of intense wave phenomena in magnetized plasmas.
More Related Videos
08:50Total Internal Reflection Absorption Spectroscopy (TIRAS) for the Detection of Solvated Electrons at a Plasma-liquid Interface
Published on: January 24, 2018
08:10Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas
Published on: May 25, 2021
Related Concept Videos
01:23Atomic Nuclei: Nuclear Relaxation Processes
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis, the precessing magnetic moments are randomly oriented around the z-axis. This...
01:18Solenoids
A solenoid is a conducting wire coated with an insulating material, wound tightly in the form of a helical coil. The magnetic field for a solenoid is the vector sum of the magnetic field due to its individual turns. For an ideal solenoid, the magnetic field inside is almost uniform and parallel to the solenoid axis, while the magnetic field outside the solenoid is nearly zero.
Each turn in a solenoid can be approximated as a circular current carrying coil that generates a dipole moment. The...
Each turn in a solenoid can be approximated as a circular current carrying coil that generates a dipole moment. The...
01:18Magnetic Field of a Solenoid
A solenoid is a conducting wire coated with an insulating material, wound tightly in the form of a helical coil. The magnetic field due to a solenoid is the vector sum of the magnetic fields due to its individual turns. Therefore, for an ideal solenoid, the magnetic field within the solenoid is directly proportional to the number of turns per unit length and the current. Conversely, the magnetic field outside the solenoid is zero.
Consider a solenoid with 100 turns wrapped around a cylinder of...
Consider a solenoid with 100 turns wrapped around a cylinder of...
01:29Potential Due to a Polarized Object
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
01:24Potential Due to a Magnetized Object
Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
The vector...
01:15Magnetic Vector Potential
In electrostatics, the electric field can be written as the negative gradient of the potential. In magnetostatics, the zero divergence of the magnetic field ensures that the magnetic field can be expressed as the curl of a vector potential. This potential is known as the magnetic vector potential.
Consider an ideal solenoid with n turns per unit length and radius R. If I is the current through the solenoid, the magnetic field inside the solenoid is expressed as the product of vacuum...
Consider an ideal solenoid with n turns per unit length and radius R. If I is the current through the solenoid, the magnetic field inside the solenoid is expressed as the product of vacuum...