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Related Experiment Videos

Angular momenta creation in relativistic electron-positron plasma.

T Tatsuno1, V I Berezhiani, M Pekker

  • 1Graduate School of Frontier Sciences, The University of Tokyo, Tokyo 113-0033, Japan.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|August 26, 2003
PubMed
Summary

Angular momentum in relativistic electron-positron plasma forms stable vortex chains. This suggests electromagnetic forces may have generated angular momentum in the early Universe.

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Area of Science:

  • Plasma Physics
  • Cosmology
  • Quantum Field Theory

Background:

  • Relativistic electron-positron plasmas are key to understanding early Universe phenomena.
  • Angular momentum generation is a fundamental question in astrophysics and cosmology.
  • Nonlinear dynamics govern complex plasma behaviors.

Purpose of the Study:

  • To investigate the creation and stability of angular momentum in relativistic electron-positron plasmas.
  • To identify the characteristic equations governing such systems.
  • To explore potential implications for the early Universe's MeV epoch.

Main Methods:

  • Theoretical analysis of plasma dynamics.
  • Application of the generalized nonlinear Schrödinger equation.
  • Investigating asymptotic states of the system.

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Main Results:

  • A robust asymptotic state characterized by a chain of angular momentum-carrying vortices is identified.
  • The generalized nonlinear Schrödinger equation sustains these vortex structures.
  • The findings provide a potential mechanism for angular momentum generation.

Conclusions:

  • The study demonstrates a robust mechanism for angular momentum generation in relativistic plasmas.
  • The results support the hypothesis of an electromagnetic origin for cosmic angular momenta.
  • This has significant implications for models of the early Universe.