Paul John Ellis (25 May 1941 – 20 February 2005) was a professor of physics at University of Minnesota for over 30 years. He is noted for his earlier work examining effective interactions inside nuclei, coupled channel approaches to nuclear reactions, and later work looking at dense nuclear matter inside neutron stars and developing a set of effective lagrangians that take into account scale and chiral symmetry.
Prakash, M; Bombaci, I; Prakash, M; Ellis, PJ, Lattimer, JM; Knorren, R (1997). "Composition and Structure of Protoneutron Stars". Physics Reports. 280 (1): 1. Bibcode:1997PhR...280....1P. arXiv:nucl-th/9603042v1 . doi:10.1016/S0370-1573(96)00023-3. CS1 maint: Multiple names: authors list (link)Heide, Erik K., Rudaz, Serge & Paul J. Ellis (1994). "An effective Lagrangian with broken scale and chiral symmetry applied to nuclear matter and finite nuclei". Nuclear Physics A. 571 (4): 713–732. Bibcode:1994NuPhA.571..713H. arXiv:nucl-th/9308002 . doi:10.1016/0375-9474(94)90717-X. CS1 maint: Multiple names: authors list (link)Ellis, P. J. (1990). Trends in theoretical physics: Based on the 1988-89 Distinguished-Speaker Colloquium Series of the Theoretical Physics Institute at the University of Minnesota. Redwood City, Calif: Addison-Wesley. 