Sven Åberg
Professor, Head of Mathematical Physics Division
Mathematical Physics
LTH, Lund University
P.O. Box 118
S-221 00 Lund
+46 46 222 9633
0705-573 569
+46 46 222 4416
In Gambia with CrocodilesIn Lund with Books


Quantum Mechanics and Mathematical Methods
September - October 2010.

Complex Economy
January-March 2011.

Chaos for Science and Technology
March-May 2011.

Member of Kungliga Fysiografiska Sällskapet i Lund

Responsible for LTH's Gemstone projekt

Director of the Linnaeus Graduate School Nanoscience and Quantum Engineering

Research interests

A. Theoretical Nuclear Physics:
Exotic nuclear shapes, high-spin physics, giant resonances, structure and decay modes of super-heavy nuclei. Models for nuclear level density, pairing forces. Semiclassical methods in nuclear physics.

B. Quantum Chaos:
Quantum many-body chaos. Random matrix and semiclassical approaches. Fidelity decay. Doorway approaches. Chaos in the atomic nucleus, and experimental consequences.

C. Ultracold Atomic Gases:
Structure of few-atomic systems. Pairing. Polarons. Effective-interaction approaches.

Some recent publications:

Weighing up Nuclear Masses
S. Åberg, Nature 417 (2002) 499.

Phase Transitions Towards Frequency Entrainment in Large Oscillator Lattices
P. Ostborn, S.Åberg and G. Ohlen, Phys. Rev. E68 (2003) 015004.

Comment on "Attenuation of the Intensity within a Superdeformed Band"
S. Åberg, Phys. Rev. C68 (2003) 069801.

Doorway States in the Gamma Decay-Out of the Yrast Superdeformed Band in 59Cu
C. Andreoiu, T. Dossing, C. Fahlander, I. Ragnarsson, D. Rudolph, S. Åberg, R.A.E. Austin, M.P. Carpenter, R.M. Clark, R.V.F. Janssens, T.L. Khoo, F.G. Kondev, T. Lauritsen, T. Rodinger, D. Seweryniak, T. Steinhardt, C.E. Svensson, O. Thelen and J.C. Waddington, Phys. Rev. Lett. 91 (2003) 232502.

Complete Spectroscopy in High-Spin Cranking Calculations
I. Ragnarsson, C. Andreoiu, Th. Dossing, C. Fahlander, D. Rudolph and S. Åberg, European Physics Journal A20 (1): (2004) 35. Regularity and Chaos in Interacting Two-Body Systems S. Radionov, S. berg and Th. Guhr, Phys. Rev. E (2004), E70 (2004) 036207.

Isospin Symmetry Breaking in 93Tc and Statistical Properties
S. Åberg, A. Heine, G.E. Mitchell, A. Richter, Phys. Lett. B598 (2004), 42.

Correlation and Spin Polarization in Quantum Dots: Local Spin Density Functional Theory Revisited
M. Borgh, M. Toreblad, M. Koskinen, M. Manninen, S. Åberg and S. Reimann, Int. J of Quant Chem 105 (6) (2005), 817.

Nuclear Friction and Quantum Mechanical Diffusion
S. Radionov and S. Åberg, Phys. Rev. C71 (2005), 817.

Supershell Structure in Trapped Dilute Fermi Gases
Y. Yu, M. Ogren, S. Åberg, S.M. Reimann and M. Brack, Phys. Rev. A72 (2005) 051602.

Correlations in Nuclear Masses
H. Olofsson, S. Åberg, O. Bohigas and P. Leboeuf, Phys. Rev. Lett. 96 (2006) 042502.

An Unpaired Bandcrossing at new Hights for Rotating Nuclei
D. Rudolph, B.G. Carlsson, I. Ragnarsson, S. Åberg, et al, Phys. Rev. Lett., 96 (2006) 092501.

Cranked Nilsson-Strutinsky vs the Spherical Shell Model: A Comparative Study of pf-shell Nuclei
A. Juodagalvis, I. Ragnarsson and S. Åberg, Phys. Rev. C73 (2006) 044327.

Super-shell structure in harmonically trapped fermionic gases and its semi-classical interpretation
M. Ogren, Y. Yu, S. Åberg, S.M. Reimann and M. Brack, Physica Scripta, T125 (2006) 37.

Correlations and Chaotic Motion in Nuclear Masses
H. Olofsson, S. Åberg, O. Bohigas and P. Leboeuf, Physica Scripta, T125 (2006) 1.

Pairing and Signature Splitting in the pf-shell
A. Juodagalvis, I. Ragnarsson and S. Åberg, Physica Scripta, T125 (2006) 198.

Quantum Chaos and Regularity in Ultracold Fermi Gases
M. Puig von Friesen, M. Ogren and S. Åberg, Phys. Rev. E76 (2007) 057204.

Semiclassical Theory of Bardeen-Cooper-Schrieffer Pairing-gap Fluctuations
H. Olofsson, S. Åberg and P. Leboeuf, Phys. Rev. Lett. 100 (2008) 037005.

Collective Motion in a Quantum Diffusive Environment
V.M. Kolomietz, S. Åberg and S.V. Radionov, Phys. Rev. C77 (2008) 014305.

Superscars in Billiards: A Model for Doorway States in Quantum Spectra
S. Åberg, T. Guhr, M. Miski-Oglu and A. Richter, Phys. Rev. Lett. 100 (2008) 204101.

Effective-Interaction Approach to the Many-Boson Problem
J. Christensson, C. Forssen, S. Åberg, and S. M. Reimann, Phys. Rev. A79 (2009) 012707.

Cold Fermionic Atoms in Two-Dimensional Traps: Pairing versus Hund's Rule
M. Rontani, J. R. Armstrong, Y. Yu, S. Åberg and S. M. Reimann, Phys. Rev. Lett. 102 (2009) 060401.

Chaos and Structure of Level Densities
S Åberg, H. Uhrenholt, T. Ichikawa and P. Moller, Int J Mod Phys E18 (2009) 926.

Strain in Semiconductor Core-Shell Nanowires
J. Gronqvist, N. Sondergaard, F. Boxberg, Th. Guhr, S. Åberg, H.Q. Xu, J. Appl. Phys. 106 (2009) 1.

Survival probability of a doorway state in regular and chaotic environments
H. Kohler, H.-J. Sommers and S. Åberg, J. Phys. A: Math. Theor. 43 (2010) 215102.

Coupling coeffcient distribution in the doorway mechanism
H. Kohler, T. Guhr and S. Åberg, New J. of Physics 12 (2010) 073026.

Exact fidelity and full fidelity statistics in regular and chaotic surroundings
H. Kohler, H.-J. Sommers, S. Åberg and T. Guhr, Phys. Rev. E81, 050103(R) (2010).

Last updated: August 12th 2010