1. Naftali Auerbach
2. Michael Bender
3. Karim Bennaceur
4. Jean-Francois Berger
5. Anirban Bhattacharyya
6. Scott Bogner
7. Piotr Borycki
8. Thomas Duguet
9. Paolo Finelli
10. Christian Fuchs
11. Dick Furnstahl
12. Charles Horowitz
13. Dean Lee
14. Horst Lenske
15. Thomas Lesinski
16. Masayuki Matsuo
17. Witek Nazarewicz
18. John Negele
19. Nils Paar
20. Thomas Papenbrock
21. Michael Pearson
22. Peter Ring
23. Luis Robledo
24. Tomas Rodriguez
25. Vincent Rotival
26. Brian Serot
27. Amritanshu Shukla
28. Janusz Skalski
29. Mario Stoitsov
30. Jianmin Tao
31. Masayuki Yamagami

1. Naftali Auerbach: Nuclear Structure and Neutrino-Nucleus Interactions
2. Michael Bender: Going beyond the mean-field: configuration mixing of symmetry-restored mean-field states
3. Karim Bennaceur: Pairing schemes for HFB calculations: Results and discussions
4. Jean-Francois Berger: The Gogny force: recent improvements; towards a new parameterization
5. Anirban Bhattacharyya: Incorporating Spin-Orbit in Kohn-Sham DFT
6. Scott Bogner: Simplifying the Nuclear Many-Body Problem with Low Momentum Interactions
7. Thomas Duguet: Pairing schemes for HFB calculations of nuclei: Formal aspects
8. Paolo Finelli: Relativistic nuclear energy density functional constrained by low-energy QCD
9. Christian Fuchs: Isospin dependence of the mean field from relativistic Brueckner-Hartree-Fock
10. Dick Furnstahl: Density Functional Theory from Effective Actions
11. Charles Horowitz: Cluster formation in low density nuclear matter and the virial expansion: implications for density functionals
12. Dean Lee: Lattice simulations of cold dilute neutron matter
13. Horst Lenske: ab initio DFT for Nucleons and Hyperons
14. Thomas Lesinski: Fitting the parameters of a Skyrme-type interaction using a microscopic effective interaction in the pairing channel
15. Masayuki Matsuo: Small neutron Cooper pair at low density: BCS-BEC crossover and interactions
16. Witek Nazarewicz: (i) Nuclear DFT and Maximum-Spin States, (ii) Microscopic Leptodermous Expansion
17. John Negele: Density Functional Theory for Nuclei: Old Ideas and New Questions
18. Nils Paar: Collective excitations in atomic nuclei based on density functionals and correlated nucleon-nucleon interactions
19. Thomas Papenbrock: Density functional theory for fermions in the unitary regime
20. Michael Pearson: HFB mass models
21. Peter Ring: Covariant density functional theory for excited states in nuclei
22. Luis Robledo: Beyond mean field calculation with the density dependent Gogny force
23. Tomas Rodriguez: Correlations Beyond the Mean Field: Towards Variation After Projection Solutions
24. Brian Serot: Electromagnetic Interactions in a Chiral Effective Lagrangian for Nuclei
25. Janusz Skalski: Fusion (fission) barriers from self-consistent calculations as a DF test
26. Mario Stoitsov: Density Functional Theory and Symmetry Restoration in Nuclei
27. Jianmin Tao: Nonempirical Construction of a Meta-GGA Density Functional and Useful Extensions
28. Masayuki Yamagami: Continuum effects for many-body correlations in nuclei close to the neutron drip line

	Monday	Tuesday	Wednesday	Thursday	Friday
08:30-09:00	wake-up coffee	wake-up coffee	wake-up coffee	wake-up coffee	wake-up coffee
09:00-09:40	Negele	Finelli	Bogner	Bender	Berger
09:50-10:30	Tao	Serot	Lenske	Ring	Stoitsov
10:40-11:10	coffee	coffee	coffee	coffee	coffee
11:10-11:50	Furnstahl	Nazarewicz	Lee	Robledo	Skalski
12:00-15:00	lunch break +discussions	lunch break +discussions	lunch break +discussions	lunch break +discussions	lunch break +discussions
15:00-15:40	Horowitz	Pearson	Papenbrock	Matsuo	Duguet
15:50-16:30	Bhattacharyya discussion	Auerbach discussion	Paar Fuchs	Yamagami	Bennaceur
16:40-17:10	coffee	coffee	coffee	coffee	coffee
17:10-17:50	discussion	discussion	discussion	Rodriguez discussion	Lesinski discussion

Over the lunch at the Little Thai restaurant, and after having an overdose of iced water, the organizers of the workshop joined forces with Witek Nazarewicz to formulate three simple (to formulate) problems pertaining to the subjects presented and discussed during the workshop.

We challenge every participant, and also every living soul for that matter, to answer one or all of the questions posed below. Answers are due before or at the next DFT workshop, wherever and whenever it takes place. They will be evaluated by the panel composed of us four, naturally. All evaluations are final and not subject to appeal. The winner(s) will be awarded one bottle of champaign per each problem solved; the quality of champaign will be commensurate with the quality of provided solutions.

Problem No. 1

What is the ground state of infinite, spin-symmetric nuclear matter (protons and neutrons) at low densities, interacting with 2- and 3-body contacts? The scattering length in the 2-body T=1 channel is infinite. The strength of the 3-body contact must ensure saturation with increasing isoscalar density. The resulting density functional must be isospin invariant, and clusterisation must be considered. The parameter space of the system are: (i) the isoscalar and isovector average densities, (ii) the scattering length in the 2-body T=0 channel, and (iii) the strength of the 3-body contact (as long as it provides saturation).

Problem No. 2

How can one replace in a nuclear density functional: (i) dependence on momentum by dependence on density, or (ii) dependence on density by dependence on momentum? The fact of life that nuclei are finite systems composed of protons and neutrons must not be ignored, forgotten, disregarded, neglected, or otherwise assumed irrelevant. The consequences of the proposed replacements must be considered in the context of (i) constructing functionals from first principles (e.g., how to replace the Fermi momentum for the density), (ii) conserving symmetries (e.g., how to construct an isospin-invariant density functional from microscopic results for asymmetric matter), and (iii) restoring broken symmetries.

Problem No. 3

Can we formulate a DFT for symmetry-restored states? The aim is to obtain the laboratory ground-state energy for a system which breaks a symmetry in the intrinsic frame. Degeneracy of symmetry-breaking states with respect to shifts by symmetry operators must not be forgotten. A restriction of solution to gauge-symmetry breaking, related to particle-number mixing is acceptable. Solutions based on projection methods may be considered only if they avoid known drawbacks.

PS. If you need to google these problems use adajawi.

Last modified: October 4, 2005