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Title: Giant increase in cross-magnetic-field transport rate as an electron-positron plasma cools

Abstract

An electron-positron plasma in thermal equilibrium within a uniform magnetic field is studied here using a classical trajectory Monte Carlo simulation. The cross-magnetic-field single-particle diffusion coefficient is evaluated as a function of the magnetic field strength and plasma temperature. The transport rate is found to increase by many orders of magnitude as the plasma temperature is lowered, for a magnetic field strength of 1 T. The sharp dependence on temperature is due to electrons and positrons becoming temporarily correlated and drifting across the magnetic field before dissociating.

Authors:
 [1]; ORCiD logo [1]
  1. Univ. of North Texas, Denton, TX (United States). Dept. of Physics
Publication Date:
Research Org.:
Univ. of North Texas, Denton, TX (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); National Science Foundation (NSF)
OSTI Identifier:
1523260
Alternate Identifier(s):
OSTI ID: 1398125
Grant/Contract Number:  
FG02-06ER54883; PHY-1500427
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 10; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Aguirre, F. F., and Ordonez, C. A. Giant increase in cross-magnetic-field transport rate as an electron-positron plasma cools. United States: N. p., 2017. Web. doi:10.1063/1.5001680.
Aguirre, F. F., & Ordonez, C. A. Giant increase in cross-magnetic-field transport rate as an electron-positron plasma cools. United States. doi:10.1063/1.5001680.
Aguirre, F. F., and Ordonez, C. A. Thu . "Giant increase in cross-magnetic-field transport rate as an electron-positron plasma cools". United States. doi:10.1063/1.5001680. https://www.osti.gov/servlets/purl/1523260.
@article{osti_1523260,
title = {Giant increase in cross-magnetic-field transport rate as an electron-positron plasma cools},
author = {Aguirre, F. F. and Ordonez, C. A.},
abstractNote = {An electron-positron plasma in thermal equilibrium within a uniform magnetic field is studied here using a classical trajectory Monte Carlo simulation. The cross-magnetic-field single-particle diffusion coefficient is evaluated as a function of the magnetic field strength and plasma temperature. The transport rate is found to increase by many orders of magnitude as the plasma temperature is lowered, for a magnetic field strength of 1 T. The sharp dependence on temperature is due to electrons and positrons becoming temporarily correlated and drifting across the magnetic field before dissociating.},
doi = {10.1063/1.5001680},
journal = {Physics of Plasmas},
number = 10,
volume = 24,
place = {United States},
year = {2017},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
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Citation Metrics:
Cited by: 1 work
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Figures / Tables:

FIG. 1 FIG. 1: Three dimensional view of the formation and dissociation of a magnetobound state of positronium. The two colors represent the separate trajectories of a positron and an electron. The two particles initially approach each other while following helical paths due to the presence of a magnetic field. The electronmore » and positron drift across the magnetic field, while they remain spatially correlated with each other.« less

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.