Michel
Vallières
Department Head; Professor
B.Sc. (Physics),1967, Universite Laval, Quebec, Canada; Ph.D. (Physics), 1972, University of Pennsylvania
Phone: (215) 895-2714, Fax: (215) 895-5934,
e-mail: .drexel.edu
Research Interest
Shell Model techniques in Nuclear and Atomic Physics;
Chaotic Scattering;
Quantum-Classical correspondence; High-Performance computing.
Research Outlooks
Fast computers and fast networks are fast changing the
way in which we conduct science.
This is specially apparent in Theoretical Nuclear
Physics where we attempt to model very complicated quantum mechanical
many body systems. In this context,
Professor Akiva Novoselsky, Hebrew University, and I developed the
Drexel University Shell-Model (DUSM)
code which aims at modeling nuclear spectroscopy.
We have recently developed a parallel version of this code, DUPSM ,
one of the most powerful Shell-Model code in existence.
This approach aims at answering
the new challenge facing Nuclear Physics to charter the
yet mostly unknow proton or neutron rich nuclei.
Non Linear Dynamics is also a field that grew once experimental
mathematics became a reality with the advances in computer
technology. I am particularly interested in
chaotic scattering. This is a new area of
classical non linear dynamics where results are barely starting to appear;
yet it is prevalent in most collision processes, whether the colliding
bodies be nuclei, atoms, molecules or stars. It becomes even more
fascinating to study these processes at the quantum mechanical level
and thereby address the ever more elusive question of Quantum Chaos.
Selected Recent Publications
- Full f-p shell calculation of 51Ca and 51Sc, A. Novoselsky,
M. Vallières and O. La'adan, Phys. Rev. Lett., 79, 4341 (1997).
- Full f-p shell Calculation of 52Sc, A. Novoselsky,
M. Vallières, Phys. Rev. C 57, R19 (1998).
- Chaotic Scattering on a Billiard , V. Daniels,
M. Vallières, and J.M. Yuan, Phys. Rev. E 57, 1519-1531 (1998).
- A New Approach to Nuclear Shell-Model, invited talk by
Michel Vallières, International Symposium
on Nuclear Structure Physics, May 1993,
Taipei, Taiwan.
- Chaotic Scattering on a Double Well: Periodic
Orbits, Symbolic Dynamics, and Scaling, V. Daniels,
M. Vallières and J.-M. Yuan, invited paper for
a special issue of on Chaotic Scattering, Chaos 3 , 4, 1993.
- Dynamics of Driven Molecular Systems, James F. Heagy,
Zi-Min Lu, Michel Vallières and Jian-Min Yuan, Chapter in
Chaos series, Vol. 4, ed. by D.H. Feng and J.M. Yuan, World
Scientific, Singapore, 1993.
Recent Computational Courses
PHYS405
PHYS325
PHYS305
PHYS160
PHYS105