TITLE:

HPC Implementation of Microscopically Constrained Energy Density Functionals

DATE:

Friday, November 30th, 2018

TIME:

3:30 PM

LOCATION:

GMCS-314

SPEAKER:

Rodrigo Navarro Perez, Assistant Professor, Department of Physics, SDSU.

ABSTRACT:

While ab-initio many body techniques have been able to successfully describe
the properties of light and intermediate nuclei based on chiral effective
field theory interactions, heavy neutron rich nuclei still remain out of
reach for these methods. Conversely, self-consistent mean field approaches
can be used to calculate heavy nuclei properties but rely on phenomenological
interactions. In this work we present a usable form of the nuclear energy
density functional that is rooted in the modern theory of nuclear forces.
We apply the UNEDF2 optimization protocol to determine the coupling constants
of this energy functional. We obtain a set of microscopically-constrained
functionals for local chiral potentials from leading-order up to next-to-next-
to-leading order with and without three-body forces and contributions from Delta excitations.
We also present validations of these functionals based on the calculation of nuclear and
neutron matter, nuclear mass tables, single-particle shell structure in closed-shell
nuclei and the fission barrier of 240Pu.

HOST:

Dr. Jose Castillo

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