John A. Shaw
Professor of Physics
Louisiana School of Math, Science, and the Arts
715 College Avenue
Natchitoches, LA 71457
Tel. (318) 357-3174 ext. 128
Home Phone: (318) 323-8148
email:
jshaw@lsmsa.edu
CITIZENSHIP:
FIELD OF RESEARCH: Theoretical Atomic Physics
CURRENT RESEARCH:
My original research field was computational atomic physics. I have experience calculating electron-impact excitation cross sections of positive ions in plasmas and using the results to compute model spectra. I also study highly excited electronic states of atoms in electric and magnetic fields by semiclassical methods. My thesis, for example, used Hamiltonian bifurcation theory to explain features in the photoabsorption spectrum of hydrogen in magnetic fields. Recent work has focused on alkali metal atoms in electric fields and extensions of semiclassical closed-orbit theory to include scattering.
EDUCATION:
Ph.D. in physics,
M.S. in physics,
B.S. in physics,
WORK EXPERIENCE:
Visiting Scientist, LIGO visitor
program, Summer 2003
Professor of Physics, Louisiana School for Math, Science, and the Arts, Fall
2000-present
Visiting Assistant Professor of Physics, Centenary College, Fall 1999-Summer
2000
Postdoctoral Research Fellow, Auburn University, Fall 1995-Summer 1999.
Adjunct Instructor of Physics, College of William and Mary, Summers 1992-1995.
Adjunct Instructor of Mathematics,
Graduate Research Assistant, T-4 Division,
Graduate Research Assistant, College of William and Mary, May 1989 - January
1993.
Teaching Assistant, College of William and Mary, June 1988 - May 1989.
Laboratory Instructor,
REFEREED PUBLICATIONS:
M.L. Keeler, Heric Flores-Rueda, T.J. Morgan, J. Shaw, ‘’ Behavior of nonclassical recurrence amplitudes near closed-orbit bifurcations in atoms,” accepted Phys. Rev. A (2003).
J. Shaw, M. Pindzola, M. Steidl, K. Aichele, U. Hartenfeller, D. Haithiramani, F. Scheuermann, M. Westermann, and E. Salzborn, ``Electron-Impact Single Ionization of Ga Ions'', Phys. Rev. A (March 2001).
J. Shaw and F. Robicheaux, ``Reply to
D.
J. Shaw and F. Robicheaux, `` Recurrence Spectroscopy of Atoms in Electric Fields: Scattering in the Presence of Bifurcations,'' Phys. Rev. A 58 3561 (November 1998).
J. Shaw, M. Pindzola, N.
R. Badnell, and D.
J. Shaw and F. Robicheaux, `` Recurrence Spectroscopy of Atoms in Electric Fields: Failure of Classical Scaling Near Bifurcations,'' Phys. Rev. A 58 1910 (September 1998).
F. Robicheaux and J. Shaw, `` Recurrences without Closed-Orbits,'' Phys. Rev. A 58 1043 (August 1998).
D. Mitnik, J. Shaw, M. Pindzola, D.
M. Pindzola, D. Mitnik, J. Shaw, D.
W. Liu, D. Jeffery, D. Schultz, P. Quinet, J. Shaw, and M. Pindzola,
"Emission From Cobalt in
D.
F. Robicheaux, J. Shaw, G. M. Lankhuijzen, and L. D. Noordam, "Coherent Electron Emission from Rydberg Atoms," Comments on Atomic and Molecular Physics (1997).
F. Robicheaux and J. Shaw, "Calculated Electron Dynamics in Electric Fields," Phys. Rev. A 56 278 (July 1997).
F. Robicheaux and J. Shaw, "Calculated Electron Dynamics in a Strong Electric Field," Phys. Rev. Lett. 77 4154 (November 1996).
D. Haithiramani, K. Aichele, G. Hofmann, M. Steidl, M. Stenke, R. Volpel, and E. Salzborn; M. S. Pindzola, J. A. Shaw, D. C. Griffin, and N. R. Badnell. "Electron-Impact Single Ionization of Low-Charged Molybdenum Ions," Phys. Rev. A 54 587 (July 1996).
J. Shaw, J. B. Delos, M. Courtney, and D. Kleppner. "Recurrences Associated with a Classical Orbit in the Node of a Quantum Wavefunction," Phys. Rev. A. 52 3695 (November 1995).
D. A. Sadovskii, J. Shaw, and J. B. Delos. "Organization and Sequences of Bifurcations of Periodic Orbits," Phys. Rev. Lett. 75 2120 (September 1995).
J. Main, G. Wiebusch, K. H. Welge, J. Shaw, and J. B. Delos. "Recurrence Spectroscopy: Observation and Interpretation of Large Scale Structure in the Absorption Spectra of Atoms in Magnetic Fields," Phys. Rev. A., 49 847 (February 1994).
J. M. Mao, J. Shaw, and J. B. Delos. "Closed Orbits and Semiclassical Wavefunctions in Two-Dimensional Hamiltonian Systems," J. Stat. Phys., 68 51 (1992).
GRANTS:
National Science
Foundation/Caltech "LIGO Visitor Program, PHY-9986274." Microseismic
investigation and supervision of SURF student,
National Science Foundation "U.S.-Netherlands Cooperative Research:
Dynamics of Electron Waves." Travel to FOM/AMOLF for collaborative
research,
CONTRIBUTED PAPERS, TALKS, WORKSHOPS:
J. Shaw. "Recurrence
Spectroscopy and the Dynamics of Rydberg Electrons in
Strong Electric Fields," Colloquium, Northwestern State
Summer School participant, International Amateur-Professional Photoelectric Photometry Summer School and Symposium, July 2002.
J. Shaw, D. Mitnik, M. S.
Pindzola, D. C. Griffin, N. R. Badnell,
H. P. Summers, and D. R. Schultz. "Electron-Ion
Scattering Cross Sections for the Modeling of Astrophysical and Laboratory
Plasmas," Second
J. Shaw, D. C. Griffin, M. S. Pindzola, and N. R. Badnell. "Radiative and Electron-Impact Collisional Rates and the Collisional-Radiative Modeling of Low Temperature Plasmas," invited talk to code-integration group, Los Alamos National Laboratory, October 1997.
J. Shaw, D. C. Griffin, M. S. Pindzola,
and N. R. Badnell. "Radiative and Electron-Impact Collisional
Rates and the Collisional-Radiative Modeling of Low
Temperature Plasmas," XX. ICPEAC meeting,
F. Robicheaux and J. Shaw. "Electron
Dynamics in Atoms in Electric Fields," XX. ICPEAC
meeting,
J. Shaw, "Electron Scattering inside Atoms in
External Fields," Invited talk,
J. Shaw, "Electron Scattering in Alkali Atoms
in External Fields," Invited talk, Workshop on New Developments in
Electron-Ion Collisions,
J. Shaw, M. S. Pindzola,
D. C. Griffin, N. R. Badnell, and H. P. Summers.
"Atomic Collision Data for the Determination of Argon Impurity Influx in Tokamaks," Southeast Section Meeting of the American
Physical Society,
M. S. Pindzola, J. Shaw,
D. C. Griffin, N. R. Badnell, H. P. Summers, and D.
R. Schultz. "Atomic Collision Data for ADAS,"
Tenth APS Topical Conference on Atomic Processes in Plasma,
E. R. Tracy, Reggie Brown, J. Shaw, and X.-Z. Tang. "Recent Progress in the Analysis of Noisy Chaotic
Signals," APS Division of Plasma Physics Meeting,
J. Shaw, A. Joshua, and E. R. Tracy. "On the Noise Response of Chaotic Systems," Sherwood Conference, Spring 1995.
J. M. Mao, J. Shaw, and J. Delos. "Bifurcation
of Periodic Orbits of an Electron of an Atom in a Magnetic Field,"
published in the Proceedings of the International Workshop in Non-Linear
Dynamics and Chaos,
J. Shaw. "Photoabsorption Spectra of Hydrogen in Strong Magnetic Fields," contributed talk at the Annual meeting of the Southeastern section of the APS. November 1991.
J. M. Mao and J. Shaw. "Bifurcation
of Periodic Orbits and Analysis of Photoabsorption
Spectra of an Atom in a Magnetic Field," Gordon Research Conference,
COMPUTER SKILLS:
The research at
PROFESSIONAL SOCIETIES: American Physical Society,
DAMOP
OTHER ACTIVITIES: Co-organizer with Eugene Tracy of weekly seminars in
non-linear dynamics at William and Mary, 1994.
RESEARCH REFERENCES:
Dr. Michael S. Pindzola,
Postdoctoral advisor
Professor of Physics,
Tel. (334) 844-4127
Dr.
Professor of Physics,
Tel. (334) 844-4366
Dr. John Delos
Professor of Physics, Thesis advisor. Physics Department,
Tel. (757) 221-3511
RECENT TEACHING REFERENCES
Dr. Jim Findley
Director of Academic Affairs
Louisiana School of Math, Science, and the Arts
715 College Avenue
Natchitoches, LA 71457
Tel. (318) 357-3174
Dr. Juan Rodriguez
Department of Physics and Engineering,
Tel. (318) 869 - 5218
Dr. Joe Perez
Department of Physics,
Tel. (334) 844-4264