Document Type

Article

Publication Date

6-18-2009

Publication Title

Physical Review Letters

Department

Department of Physics and Astronomy

Abstract

Dynamical relaxation of a pure electron plasma in a Malmberg-Penning trap is studied, comparing experiments, numerical simulations and statistical theories of weakly dissipative two-dimensional (2D) turbulence. Simulations confirm that the dynamics are approximated well by a 2D hydrodynamic model. Statistical analysis favors a theoretical picture of relaxation to a near-maximum entropy state with constrained energy, circulation, and angular momentum. This provides evidence that 2D electron fluid relaxation in a turbulent regime is governed by principles of maximum entropy.

DOI

10.1103/PhysRevLett.102.244501

Original Citation

Rodgers DJ, Servidio S, Matthaeus WH, Montgomery DC, Mitchell TB, Aziz T. Hydrodynamic relaxation of an electron plasma to a near-maximum entropy state. Phys Rev Lett. 2009 Jun 19;102(24):244501. doi: 10.1103/PhysRevLett.102.244501. Epub 2009 Jun 18. PMID: 19659012.

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