A CMA-workshop on

Computational advances in the nuclear many-body problem

Oslo, March 11-13, 2004

Hosted by:
Department of Physics and Centre of Mathematics for Applications, University of Oslo, Norway.

Organizing committee:
Morten Hjorth-Jensen and Eivind Osnes

Introduction:
Several methods exist for studying the nuclear many-body problem, ranging from partial differential equations to Green's function Monte Carlo methods and large-scale shell-model diagonalizations. The nuclear many-body poses significant challenges to the solution of Schroedinger's equation due to the many degrees of freedom and the nature of the interparticle interaction. The aim of this workshop is to focus on recent advances in computational aspects of the nuclear many-body problem, emphasizing algorithms, and challenges from experiments, from weakly bound systems to heavy-ion physics and dense matter.

The main topics are

• no-core effective interactions and effective interactions for intermediate nuclei
• Ab initio calculations, GFMC, no-core shell-model diagonalization,
• coupled-cluster theory.
• Shell-model studies for intermediate nuclei
• Dense matter studies, from relativistic heavy-ion collisions to neutron stars
• Weakly bound systems
• Topics from other fields, many-body methods in quantum chemistry
• Recent experimental advances
• Computers in Science education

Within this context we also wish to celebrate Torgeir Engeland's 70th birthday and more than 40 years of work in theoretical nuclear physics, spanning from collective models to large-scale shell-model calculations. During the last 15 years, Torgeir has been pivotal in the development of the Oslo shell-model code. He is a dedicated computational physicists with an interest in essentially all aspects of computations, from computing and educational topics to the nuclear many-body problem.

Poster
Please down-load the work-shop poster.

Conference Site
Centre of Mathematics for Applications, Niels Henrik Abel's building, 10th floor, UiO campus at Blindern. See map here.

Participants
List of participants here.

Registration
Please use our electronic registration form. Registration dead-line is March 1.

Lodging and travel info, tourism etc.
Detailed information here.

Preliminary Program (subject to change):

(Here is a collection of abstracts)

Thursday 11 March

Morning session: Effective interactions Paul Ellis (Minnesota)

0900-0945: Eivind Osnes (UiO): Effective interactions and the nuclear shell-model.
0945-1030: James Vary (Iowa): Effective interactions and no-core shell model calculations
1030-1100: Coffee
1100-1145: Tom T.S. Kuo(SUNY at Stony Brook): Low-momentum nucleon-nucleon interaction and effective field theory
1145-1230: David Dean (ORNL): Coupled cluster approaches to nuclear physics

1230-1400: Lunch

Afternoon session: Weakly bound systems Tom Kuo (Stony Brook)
1400-1445: Gaute Hagen (UiB): Basics of complex scaling and Berggren expansions

1445-1530: Roberto Liotta (KTH): Shell model in the complex energy plane to analyse weakly bound systems
1530-1600: Coffee
1600-1620: Jan Vaagen (UiB): Borromean characteristics
1620-1640: Boris Danilin (Moscow): Diagnostics of three-body continuum
1640-1700: Sergei Ershov (Moscow): 4-body reaction theory for correlation studies
1715-1800: Magne Guttormsen (UiO): Heated nuclei and radiative strength functions

Friday 12 March:

Morning session: Shell model Magne Guttormsen (UiO)

0900-0945: Etienne Caurier (Strasbourg): Present possibilities of Shell Model calculations. Application to the 0\nu\beta\beta decay
0945-1030: Frederic Nowacki (Strasbourg): Lanczos structure function method in standard shell model calculations
1030-1100: Coffee
1100-1145: Hubert Grawe (GSI): Shell structure from 78 Ni to 100 Sn and implications for astrophysics
1145-1230: Andres Zuker (Strasbourg):Structure of Hamiltonian matrices in the Lanczos basis

1230-1400: Lunch

Afternoon session: Shell model and nuclear astrophysics Jan Vaagen (UiB)

1400-1445: Luigi Coraggio (Napoli): Nuclear structure calculations and modern realistic nucleon-nucleon potentials
1445-1530: Alex Brown (MSU): New magic nuclei near the drip lines
1530-1600: Coffee
1600-1645: Karlheinz Langanke (Aarhus):Shell model applications in nuclear astrophysics
1645-1730: Paul Ellis (Minnesota): Isospin asymmetry in nuclei and the physical sizes of neutron stars

1900 - : Workshop dinner. Dinner speech: Hans Petter Langtangen (UiO): Computers in Science education

Saturday 13 march:

Morning session: Many-body theory and relativistic collisions Eivind Osnes (UiO)

0900-0945: Trygve Helgaker (UiO): Many-body methods in quantum chemistry
0945-1030: Eugeny Zabrodin (CMA): From many-body theory to transport equation: Monte Carlo models for the description of relativistic heavy-ion collisions
1030-1100: Coffee
1100-1145: Larissa Bravina (UiO): TBA
1145-1230: Laszlo Csernai (UiB): TBA