Connor Ballance
Assistant Research Professor

Theoretical Atomic and Molecular Physics

Email: ballacp@auburn.edu

Office: Allison Labs #112
Phone: 334-844-8712



Ph.D., The Queen's University of Belfast
B.S., The Queen's University of Belfast




Associate Research Professor, Auburn University 2014-present
Assistant Research Professor, Auburn University 2007-92014
US Dept. of Energy, Post-Doctoral Fellow 2002-2007
U.K. RmaX, Post-Doctoral Fellow, Sheffield Halam University  2000-2002
U.K. RmaX, Post-Doctoral Fellow, University of Strathclyde 1999-200
Ph.D., Canidate, Queen's University of Belfast  1995-1999




My primary research involves sophisticated modeling of electron-impact excitation/ionization of atomic and molecular systems. To achieve this requires detailed knowleged of the fundamental atomic physics as well being proficient in modern computational methods that allow for the parallel distribution of large scale problems across many processors. As a DoE post-doc, I was responsible for the parallel code development of an R-matrix electron impact scattering suite of codes on the NERSC supercomputing facilities. We focus on light fusion related species such as helium, lithium and beryllium, used as diagnostics in fusion tokamak experiments.



I have taught and supervised undergraduate students at nearly all the colleges/universities I have attended. In Belfast, I was responsible for tutoring 'Applied Mathematics for Computer Scientists' at bi-weekly classes for several years.

At the University of Strathclyde, I was an assistant instructor to Dr. Nigel Badnell in the computer lab, supervising 'Computational Physics' laboratory work. This ensures that undergraduates students acquire the necessary programming skills, should they wish to persue graduate work in computational physics.

My previous position has allowed the opportunity to develop my own 'Computational Physics' course. From the students perspective, they gain cross-disciplinary skills both mathematics, computer science and physics. The goal of the college was to include as many students. 





  1. High Precision K-shell Photoabsorption Cross Sections for Atomic Oxygen: Experiment and Theory, B.M. McLaughlin, C.P. Ballance, K.P.  Bowen, D.J. Gardnghi and W.C. Stolte 2013 Astrophys.J. Lett. 771 L8 doi:10.1088/2041-8205/771/1/L8/785/2/99
  2. Electron-inpact Excitation of Fe2+: A Comparison of Intermediate Coupling Frame Transformation, Breit-Pauli and Dirac R-matrix Calculations, N.R. Badnell and C.P Balance, 2014 Astrophys. J785 99 doi:10.1088/0004-637X
  3. Photoinization, flourescence and inner-shell process (Book), Mcgraw-Hill 'Yearbook of Science and Technology '2013 ISBN:978-0-07-180140-9 pg 281-286, B.M. McLaughlin and C.P. Ballance
  4. Evaluation of an improved atomic data basis for carbon in UEDGE emission modeling for L-Mode plasmas in DIII-D J.M. Munoz Burgos, A.W. Leonard, S.D. Loch, and C.P. Ballance, Journal of Nuclear Materials 438 S406 (2013)
  5. Kinetic theory and atomic physics corrections for determination of ion velocities from charge-exchange spectroscopy J.M. Munoz Burgos, K.H. Burrell, W.M. Solomon, B.A. Grierson, S.D. Loch, C.P. Ballance, and C. Chrystal
  6. Evaluation of an improved atomic data basis of carbon in UEDGE emission modeling for L-mode plasmas in DIII-D J.M. Munoz Burgos, A.W. Leonard, S..D. Loch, and C.P. Ballance, Journal of Nuclear Materials 438 S406 (2013)
  7. Electron-impact excitation and ionization of W3+for the determination of tnugsten influx in a fusion plasma, C.P. Ballance, S.D. Loch, M.S. Pindzola, and D.C. Griffin, J. Phys. B 46 055202 (2013)
  8. Electron-impact ionization of theCatom, Sh. Abdel-Naby, C.P. Ballance, T.G. Lee, S.D. Loch, and M.S. Pindzola, Phys. Rev A 87 022708 (2013)
  9. Uncertainties on Atomic Data, C.P. Ballance, S.D. Loch, A.R. Foster, R.K. Smith, M.C. Witthoeft, T.R. Kallman C.P. Ballance, S.D. Loch, A.R. Foster, R.K. Smith, M.C. Witthoeft, T.R. Kallman, Fusion Science and Technology/ Volume 63/Number 3/May 2013/Pages 358-362


Last updated: 10/23/2014