Julien Clinton Sprott
Curriculum Vitae

Julien Clinton Sprott   Department of Physics   University of Wisconsin   1150 University Avenue   Madison, WI 53706-1390  USA   Tel: (608) 263-4449   Fax: (608) 262-7205   sprott@physics.wisc.edu   https://sprott.physics.wisc.edu/

Personal

Education

B.S., 1964 (Physics) Massachusetts Institute of Technology
Thesis Title: Acoustical Methods for Locating Multiple Tracks in Spark Chambers
Advisor: Alan J. Lazarus

Employment

University of Wisconsin-Madison, Department of Physics

Emeritus Professor (2008-present)

Professor (1979-2008)

Associate Professor (1977-1979)

Assistant Professor (1973-1977)

Visiting Assistant Professor (1972-1973)

Oak Ridge National Laboratory, Thermonuclear Division

Research Physicist (1970-1972)

University of Wisconsin-Madison, Department of Physics

Project Associate (1969-1970)

Research Assistant (1964-1969)

Massachusetts Institute of Technology, Laboratory for Nuclear Science

Laboratory Technician (1964)

Consulting

Research Interests

Most of my professional career has been devoted to experimental plasma physics with an application to the development of controlled nuclear fusion. Fusion promises an inexhaustible supply of energy, and its attainment would revolutionize society. This interest began in graduate school where I studied electron cyclotron resonance heating of plasmas confined in a toroidal octupole magnetic field. This interest continued in subsequent employment at the Oak Ridge National Laboratory where I worked on an electron cyclotron heated mirror device (ELMO) and on the design of its toroidal successor (Elmo Bumpy Torus). Upon return to the University of Wisconsin, I continued and expanded these studies to include ion cyclotron resonance heating in octupole and tokamak devices.

I played major roles in the design and construction of several magnetic confinement devices, including Tokapole II, a toroidal divertor tokamak, and MST, a reversed field pinch, at the University of Wisconsin. My interests were in optimizing the performance of these devices.

Since 1989 my work has been mostly in nonlinear dynamics and chaos. I developed several computer programs to demonstrate chaos and to perform time-series analysis of experimental data with the aim of clarifying the underlying dynamics. These studies may have application to plasma turbulence and anomalous transport, but they are of much more general interest in fields as diverse as economics, ecology, meteorology, and electrical engineering. I have discovered a variety of especially simple chaotic systems and electrical circuits and done statistical analyses of large collections of numerically simulated chaotic systems. I have studied the chaotic and self-organizing properties of large artificial neural networks and other high-dimensional dynamical systems.

In 1984 I began a program called The Wonders of Physics, aimed at generating interest in science and encouraging students to consider scientific careers. This effort has included public presentations, workshops, development of educational software, videos, and a lecture kit, as well as the training and supervision of graduate students and teachers in employing these techniques.

Professional Societies

Awards

Publications

Ph.D. Students Graduated (and current employer)