In Fall 2008, I compiled a presentation for UT grad students about some of the research in the UT/ORNL nuclear theory group.

Recent talks

1. Medium-mass nuclei with coupled-cluster theory
   
2. Energy functionals for nuclear masses
   
3. Random matrices and chaos in nuclear spectra
   

1. Abundance of ground states with positive parity
   T. Papenbrock, H. A. Weidenmüller
   arXiv:0808.2979 [Abstract] [PDF]

2. Medium-mass nuclei from chiral nucleon-nucleon interactions
   G. Hagen, T. Papenbrock, D. J. Dean, and M. Hjorth-Jensen
   Phys. Rev. Lett. 101, 092502 (2008). [Abstract] [PDF]

3. Energy functional of the three-level Lipkin model
   M. G. Bertolli and T. Papenbrock
   arXiv:0805.2856 [nucl-th] [Abstract] [PDF]

4. Bouncing ball orbits and symmetry breaking effects in a three-dimensional chaotic billiard
   B. Dietz, B. Moessner, T. Papenbrock, U. Reif, A. Richter
   Phys. Rev. E 77, 046221 (2008). [Abstract] [PDF]

5. Comment on "Ab Initio study of 40Ca with an importance-truncated no-core shell model"
   D. J. Dean, G. Hagen, M. Hjorth-Jensen, T. Papenbrock, A. Schwenk
   Phys. Rev. Lett. 101, 119201 (2008). [Abstract] [PDF]

6. Benchmark calculations for 3H, 4He, 16O and 40Ca with ab-initio coupled-cluster theory
   G. Hagen, D. J. Dean, M. Hjorth-Jensen, T. Papenbrock, A. Schwenk
   Phys. Rev. C 76, 044305 (2007). [Abstract] [PDF]

7. Coupled-cluster theory for three-body Hamiltonians
   G. Hagen, T. Papenbrock, D. J. Dean, A. Schwenk, A. Nogga, M. Wloch, and P. Piecuch,
   Phys. Rev. C 76, 034302 (2007). [Abstract] [PDF]

8. Random Matrices and Chaos in Nuclear Spectra
   T. Papenbrock and H. A. Weidenmüller
   Rev. Mod. Phys. 79, 997 (2007). [Abstract] [PDF]

9. Complex coupled-cluster approach to an ab-initio description of open quantum systems
   G. Hagen, D. J. Dean, M. Hjorth-Jensen, and T. Papenbrock
   Phys. Lett. B 656, 169 (2007). [Abstract] [PDF]

10. Density-functional theory for the pairing Hamiltonian
    T. Papenbrock and Anirban Bhattacharyya
    Phys. Rev. C 75, 014304 (2007). [Abstract] [PDF]

11. Level repulsion in constrained Gaussian random-matrix ensembles
    T. Papenbrock, Z. Pluhar, and H. A. Weidenmüller
    J. Phys. A 39 (2006) 9709. [Abstract] [PDF]

12. Density-functional theory for fermions close to the unitary regime
    Anirban Bhattacharyya and T. Papenbrock
    Phys. Rev. A 74, 041602(R) (2006). [Abstract] [PDF]

13. The two-body random ensemble in nuclei
    T. Papenbrock and H. A. Weidenmüller
    Phys. Rev. C 73, 014311 (2006). [Abstract] [PDF]

14. Density-functional theory for fermions in the unitary regime
    T. Papenbrock
    Phys. Rev. A 72, 041603(R) (2005). [Abstract] [PDF]

15. Ab initio coupled-cluster study of 16-O
    M. Wloch, D. J. Dean, J. R. Gour, M. Hjorth-Jensen, K. Kowalski, T. Papenbrock, and P. Piecuch
    Phys. Rev. Lett. 94, 212501 (2005). [Abstract] [PDF]

16. Density matrix renormalization group and wave function factorization for nuclei
    T. Papenbrock and D. J. Dean
    J. Phys. G 31, S1377 (2005). [Abstract] [PDF]

17. Nuclear structure calculations with coupled cluster methods from quantum chemistry
    D. J. Dean, J. R. Gour, G. Hagen, M. Hjorth-Jensen, K. Kowalski, T. Papenbrock, P. Piecuch, and M. Wloch
    Nucl. Phys. A 752 (2005) 299. [Abstract] [PDF]

18. Origin of chaos in the spherical nuclear shell model: role of symmetries
    T. Papenbrock and H. A. Weidenmüller
    Nucl. Phys. A 757, 422 (2005). [Abstract] [PDF]

19. Distribution of spectral widths and preponderance of spin-0 ground states in nuclei
    T. Papenbrock and H. A. Weidenmüller
    Phys. Rev. Lett. 93 (2004) 132503. [Abstract] [PDF]

20. Coupled cluster calculations of ground and excited states of nuclei
    K. Kowalski, D.J. Dean, M. Hjorth-Jensen, T. Papenbrock, and P. Piecuch
    Phys. Rev. Lett. 92 (2004) 132501. [Abstract] [PDF]

21. Distribution of exchange energy in a bond-alternating S=1 quantum spin chain
    A. Zheludev, T. Masuda, B. Sales, D. Mandrus, T. Papenbrock, T. Barnes, and S. Park
    Phys. Rev. B 69 (2004) 144417. [Abstract] [PDF]

22. Solution of large scale nuclear structure problems by wave function factorization
    T. Papenbrock, A. Juodagalvis, and D. J. Dean
    Phys. Rev. C 69 (2004) 024312. [Abstract] [PDF]

23. Factorization of shell-model ground-states
    T. Papenbrock and D. J. Dean
    Phys. Rev. C 67 (2003) 051303(R). [Abstract] [PDF]

24. DMRG study of critical behavior of the spin-1/2 alternating Heisenberg chain
    T. Papenbrock, T. Barnes, D. J. Dean, M. V. Stoitsov, and M. R. Strayer
    Phys. Rev. B 68 (2003) 024416. [Abstract] [PDF]

25. Ground-state properties of hard core bosons in one-dimensional harmonic traps
    T. Papenbrock
    Phys. Rev. A 67 (2003) 041601(R). [Abstract] [PDF]

26. Experimental test of a trace formula for a chaotic three dimensional microwave cavity
    C. Dembowski, B. Dietz, H.-D. Graef, A. Heine, T. Papenbrock, A. Richter, and C. Richter
    Phys. Rev. Lett. 89 (2002) 064101. [Abstract] [PDF]

27. Odd-even binding effect from random two-body interactions
    T. Papenbrock, L. Kaplan, and G. F. Bertsch
    Phys. Rev. B 65 (2002) 235120. [Abstract] [PDF]

28. Universal solutions for interacting bosons in one-dimensional harmonic traps
    T. Papenbrock
    Phys. Rev. A 65 (2002) 033606. [Abstract] [PDF]

29. Phases in weakly interacting finite Bose systems
    D. J. Dean and T. Papenbrock
    Phys. Rev. A 65 (2002) 043603. [Abstract] [PDF]

30. Sympathetic cooling and growth of a Bose-Einstein condensate
    T. Papenbrock, A. N. Salgueiro, and H. A. Weidenmüller
    Phys. Rev. A 66 (2002) 025603. [Abstract] [PDF]

31. Rate equations for sympathetic cooling of trapped bosons or fermions
    T. Papenbrock, A. N. Salgueiro, and H. A. Weidenmüller
    Phys. Rev. A 65 (2002) 043601. [Abstract] [PDF]

32. Exact solutions for interacting boson systems under rotation
    T. Papenbrock and G. F. Bertsch
    J. Phys. A 34 (2001) 603. [Abstract] [PDF]

33. Spin structure of many-body systems with two-body random interaction
    L. Kaplan, T. Papenbrock, and C. W. Johnson
    Phys. Rev. C 63 (2001) 014307. [Abstract] [PDF]

34. Rotational spectra of weakly interacting Bose-Einstein condensates
    T. Papenbrock and G. F. Bertsch
    Phys. Rev. A 63 (2001) 023616. [Abstract] [PDF]

35. Invariant manifolds and collective coordinates
    T. Papenbrock and T. H. Seligman
    J. Phys. A 34 (2001) 7423. [Abstract] [PDF]

36. Wave function structure in two-body random matrix ensembles
    L. Kaplan and T. Papenbrock
    Phys. Rev. Lett. 84 (2000) 4553. [Abstract] [PDF]

37. Numerical study of a three-dimensional generalized stadium billiard
    T. Papenbrock
    Phys. Rev. E 61 (2000) 4626. [Abstract] [PDF]

38. Lyapunov exponents and Kolmogorov-Sinai entropy for a high-dimensional convex billiard
    T. Papenbrock
    Phys. Rev. E 61 (2000) 1337. [Abstract] [PDF]

39. Collective and chaotic motion in self-bound many-body systems
    T. Papenbrock
    Phys. Rev. C 61 (2000) 034602. [Abstract] [PDF]

40. A classical two-body Hamiltonian model and its mean field approximation
    G. F. Bertsch, T. Papenbrock, and S. Reddy
    Nucl. Phys. A 665 (2000) 285. [Abstract] [PDF]

41. Quantization of a billiard model for interacting particles
    T. Papenbrock and T. Prozen
    Phys. Rev. Lett. 84 (2000) 262. [Abstract] [PDF]

42. Yrast line for weakly interacting trapped bosons
    G. F. Bertsch and T. Papenbrock
    Phys. Rev. Lett. 83 (1999) 5412. [Abstract] [PDF]

43. On the special role of symmetric periodic orbits in a chaotic system
    L. Benet, C. Jung, T. Papenbrock and T. H. Seligman
    Physica D 131 (1999) 254. [Abstract] [PDF]

44. Pairing in low-density Fermi gases
    T. Papenbrock and G. F. Bertsch
    Phys. Rev. C 59 (1999) 2052. [Abstract] [PDF]

45. Spectral correlations in the crossover transition from a superposition of harmonic oscillators to the gaussian unitary ensemble
    T. Guhr and T. Papenbrock
    Phys. Rev. E 59 (1999) 330. [Abstract] [PDF]

46. Nonergodic behavior of interacting bosons in harmonic traps
    T. Papenbrock and G. F. Bertsch
    Phys. Rev. A 58 (1998) 4854. [Abstract] [PDF]

47. Bremsstrahlung in alpha-decay
    T. Papenbrock and G. F. Bertsch
    Phys. Rev. Lett. 80 (1998) 4141. [Abstract] [PDF]

48. Scars of invariant manifolds in interacting few-body systems
    T. Papenbrock, T. H. Seligman, and H. A. Weidenmüller
    Phys. Rev. Lett. 80 (1998) 3057. [Abstract] [PDF]

49. A particle-number expansion beyond self-consistent field theory
    T. Papenbrock, T. H. Seligman
    Phys. Lett. A 218 (1996) 229.

50. Two loop results from improved one loop computations
    T. Papenbrock and C. Wetterich
    Z. Phys. C 65 (1995) 519. [Abstract] [PDF]

1. Coupled-cluster theory for nuclei
   T. Papenbrock, D. J. Dean. J. R. Gour, G. Hagen, M. Hjorth-Jensen, P. Piecuch and M. Wloch
   Int. J. Mod. Phys. B 20 (2006) 5338 [article]

2. Two-body random ensemble for nuclei
   T. Papenbrock, H. A. Weidenmüller
   Int. J. Mod. Phys. B 15 (2006) 1885 [article]

3. Coupled-cluster calculation of the 3He-5He isotopes with Gamow-Hartree-Fock basis
   G. Hagen, D. J. Dean, M. Hjorth-Jensen, and T. Papenbrock
   Proceedings of Science, PoS(NIC-IX)275 (2006) [article]

4. Geometric aspects of the shell model
   T. Papenbrock and H. A. Weidenmüller
   AIP Conf. Proc. 777, 140 (2005) [volume]

5. Bridging quantum chemistry and nuclear structure theory: Coupled-cluster calculations for closed- and open-shell nuclei
   Piotr Piecuch, Marta Wloch, Jeffrey R. Gour, David J. Dean, Morten Hjorth-Jensen, and Thomas Papenbrock
   AIP Conf. Proc. 777, 28 (2005) [volume]

6. Ab initio coupled cluster calculations for nuclei using methods of quantum chemistry
   M. Woch, D. J. Dean, J. R. Gour, P. Piecuch, M. Hjorth-Jensen, T. Papenbrock, and K. Kowalski
   Eur. Phys. J. A direct (2005) [article]

7. Coupled-cluster calculations for ground and excited states of closed- and open-shell nuclei using methods of quantum chemistry
   M. Woch, J. R. Gour, P. Piecuch, D. J. Dean, M. Hjorth-Jensen, and T. Papenbrock
   J. Phys. G. 31, S1291 (2005) [article]

8. Wave function factorization of shell-model ground states
   T. Papenbrock
   Eur. Phys. J. A direct (2005) [article]

9. Nuclear shell model frontiers
   T. Papenbrock
   AIP Conf. Proc. 726, 67 (2004) [volume]

10. Experimental Test of the Trace Formula by Balian and Duplantier
    C. Dembowski, B. Dietz, H.-D. Gräf, A. Heine, T. Papenbrock, A. Richter and C. Richter
    Prog. Theor. Phys. Suppl. 150 (2003) 338 [article]

11. Invariant manifolds and collective motion in many-body systems
    T. Papenbrock and T. H. Seligman
    AIP Conf. Proc. 597, 301 (2001) [volume]