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Uzdensky, Dmitri A. Associate Professor

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Research

research overview

  • Prof. Uzdensky leads the Theoretical Plasma Astrophysics Group at CU. His current research focuses on 3 main areas: (1) Dynamics, nonthermal particle acceleration, and radiation signatures of relativistic collisionless magnetic reconnection and turbulence, with applications to pulsar magnetospheres and pulsar wind nebulae, and to black-hole accretion disks, coronae, and jets. (2) Plasmoid-dominated regime of magnetic reconnection in large systems and its onset , in both resistive MHD and collisionless plasmas. (3) Magnetic reconnection and other plasma processes in astrophysical radiation-dominated environments, a new frontier pioneered by D. Uzdensky, important for understanding magnetar flares and gamma-ray bursts. He also works on fundamental aspects of magnetic reconnection, on intermittency of energy dissipation in plasma turbulence, and on waves and instabilities in quantum plasmas.

keywords

  • theoretical plasma physics, space physics, solar physics, plasma astrophysics, high-energy astrophysics, magnetohydrodynamics, magnetic reconnection, turbulence, relativistic plasmas, radiation processes in plasmas

Publications

selected publications

Teaching

courses taught

  • ASTR 5150 - Introductory Plasma Physics
    Primary Instructor - Spring 2018
    Includes basic phenomena of ionized gases, static and dynamic shielding, linear waves, instabilities, particles in fields, collisional phenomena, fluid equations, collisionless Boltzman equations, Landau damping, scattering and absorption of radiation in plasmas, elementary nonlinear processes, WKB wave theory, controlled thermonuclear fusion concepts, astrophysical applications and experimental plasma physics (laboratory). Same as PHYS 5150.
  • ASTR 7160 - Intermediate Plasma Physics
    Primary Instructor - Spring 2019
    Topics vary yearly but include nonlinear effects such as wave coupling, quasilinear relaxation, particle trapping, nonlinear Landau damping, collisionless shocks, solutions; nonneutral plasmas; kinetic theory of waves in a magnetized plasma; anisotropy; inhomogeneity; radiation- ponderomotive force, parametric instabilities, stimulated scattering; plasma optics; kinetic theory and fluctuation phenomena. Recommended prerequisite: PHYS 5150. Same as PHYS 7160.
  • MATH 5030 - Intermediate Mathematical Physics 1
    Primary Instructor - Fall 2018
    Surveys classical mathematical physics, starting with complex variable theory and finite dimensional vector spaces. Discusses topics in ordinary and partial differential equations, the special functions, boundary value problems, potential theory, and Fourier analysis. Department enforced prerequisite: MATH 4001. Instructor consent required for undergraduates. Same as PHYS 5030.
  • PHYS 5030 - Intermediate Mathematical Physics 1
    Primary Instructor - Fall 2018
    This course and its continuation, PHYS 5040, form a survey of classical mathematical physics. Studies complex variable theory and finite vector spaces, and includes topics in ordinary and partial differential equations, boundary value problems, potential theory, and Fourier analysis. Same as MATH 5030.
  • PHYS 5150 - Introductory Plasma Physics
    Primary Instructor - Spring 2018
    Includes basic phenomena of ionized gases, static and dynamic shielding, linear waves, instabilities, particles in fields, collisional phenomena, fluid equations, collisionless Boltzman equations, Landau damping, scattering and absorption of radiation in plasmas, elementary nonlinear processes, WKB wave theory, controlled thermonuclear fusion concepts, astrophysical applications and experimental plasma physics (laboratory). Department enforced prerequisite: PHYS 3310. Instructor consent required for undergraduates. Same as ASTR 5150.
  • PHYS 7160 - Intermediate Plasma Physics
    Primary Instructor - Spring 2019
    Continuation of PHYS 5150. Topics vary yearly but include nonlinear effects such as wave coupling, quasilinear relaxation, particle trapping, nonlinear Landau damping, collisionless shocks, solutions; nonneutral plasmas; kinetic theory of waves in a magnetized plasma; anisotropy; inhomogeneity; radiation- ponderomotive force, parametric instabilities, stimulated scattering; plasma optics; kinetic theory and fluctuation phenomena. Recommended prerequisite: PHYS 5150. Same as ASTR 7160.

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