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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.
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.
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.
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.