Wesleyan portrait of Fred M. Ellis

Fred M. Ellis

Professor of Physics

Exley Science Center, 231


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BS University of Massachusetts Amherst
MAA Wesleyan University
PHD University of Massachusetts Amherst

Fred M. Ellis

My research revolves around experimental investigation of exotic wave systems, macroscopic quantum phenomena, thermodynamics, acoustics, and electronics. Of particular interest is the study of superfluid 4He films, where all of these categories overlap. Using acoustic waves known as "third sound" supported by the film as a probe, I study the properties of quantized vortices and their relation to wave-induced persistent currents. These experiments are performed at very low temperatures where I am also exploring a related process of Bose condensation of particles into the film flow as a mechanism for conversion of disordered thermal energy into ordered kinetic energy.

The experimental techniques used have also lead to recent advances in using simple electronic circuits to demonstrate novel physics associated with more complex optical phenomena.


Academic Affiliations

Office Hours

Tentatively Mon - Fri 10-11 AM

PHYS340 Computational Physics course page -- https://fellis.web.wesleyan.edu/PHY340

PHYS345 Electronics Lab course page -- https://fellis.web.wesleyan.edu/PHY345



Fall 2018
PHYS 315 - 01
Quantum Mechanics II

PHYS 505 - 01
Condensed Matter Phys Seminar