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Electrostatic equilibria of non-neutral plasmas confined in a Penning trap with axially varying magnetic field

Description: This article describes a procedure for computing the electrostatic equilibria of non-neutral plasmas in a Penning trap with a nonuniform magnetic field by solving Poisson's equation using an iterative method. Plasma equilibria in a model Penning trap with high and low field regions are computed. The plasma is assumed to follow the Boltzmann density distribution along magnetic field lines.
Date: May 21, 2019
Creator: Lane, Ryan A. & Ordonez, Carlos A.
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Partner: UNT College of Science

Artificially structured boundary plasma trap

Description: This article presents a computer simulation of single-species non-neutral plasma confinement using an artificially structured boundary. The results support the prospect of developing plasma space-charge based confinement, with an unmagnetized plasma of one species of charged particles confined by an electric field produced by an edge-confined plasma of a second species of charged particles.
Date: September 20, 2019
Creator: Hedlof, R. M. & Ordonez, Carlos A.
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Partner: UNT College of Science
open access

Closed-form expressions for the magnetic fields of rectangular and circular finite-length solenoids and current loops

Description: This article discusses closed-form expressions for the magnetic fields produced by rectangular- and circular-shaped finite-length solenoids and current loops. The closed-form expression for the magnetic field of a rectangular-shaped finite-length solenoid is derived using the Biot–Savart law. Closed-form expressions for the magnetic fields of solenoids and current loops can be used to avoid approximations in analytical models and may reduce computation time in computer simulations.
Date: June 15, 2020
Creator: Hampton, S.; Lane, R. A.; Hedlof, R. M.; Phillips, R. E. & Ordonez, Carlos A.
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Partner: UNT College of Science
open access

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

Description: The article focuses on a study of an electron-positron plasma in thermal equilibrium within a uniform magnetic field 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 d… more
Date: October 5, 2017
Creator: Aguirre, F. F. & Ordonez, Carlos A.
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Partner: UNT College of Science
open access

Lattice quantum magnetometry

Description: Article presenting the idea of lattice quantum magnetometry, i.e., quantum sensing of magnetic fields by a charged (spinless) particle placed on a finite two-dimensional lattice.
Date: June 24, 2019
Creator: Razzoli, Luca; Ghirardi, Luca; Siloi, Ilaria; Bordone, Paolo & Paris, Matteo G. A.
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Partner: UNT College of Science
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