Research areas

My research is focussed on complex system dynamics and computational physics.

My publications for  the last 10+ years are (also) available throgh the archive

arXiv.org.

My current areas of interest are

  linear response and iintermittent dynamics in aging glassy systems

 evolutionary modeling

My collaborations involve, among others

Henrik J. Jensen, Imperial College, London UK

Gregory G. Kenning, Indina University of Pennsylvania, Indiana, USA

Setfan Boettcher, Emory University, Atlanta, Georgia, USA

Karl Heinz Hoffmann, TU Cheminitz, Germany

,

Research information

see:

http://arxiv.org/

1. arXiv:0902.3556 [ps, pdf, other]

Title: On linear response scaling in glassy dynamics

Authors: Paolo Sibani, Gregory G. Kenning

Comments: 4 pages, 2 figures

Subjects: Statistical Mechanics (cond-mat.stat-mech); Soft Condensed Matter (cond-mat.soft)

2. arXiv:0712.2366 [ps, pdf, other]

Title: Thermal shifts and intermittent linear response of aging systems

Authors: Paolo Sibani, Simon Christiansen

Comments: 10 pages, 17 figures, RevTeX style

Journal-ref: Phys. Rev. E 77,041106 (2008)

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn); Soft Condensed Matter (cond-mat.soft)

3. arXiv:0709.3585 [pdf, other]

Title: Intermittent relaxation in hierarchical energy landscapes

Authors: Andreas Fischer, Paolo Sibani, Karl Heinz Hoffmann

Comments: 6 pages, 6 figures

Subjects: Statistical Mechanics (cond-mat.stat-mech)

4. arXiv:0709.1085 [ps, pdf, other]

Title: Linear response subordination to intermittent energy release in off-equilibrium aging dynamics

Authors: Simon Christiansen, Paolo Sibani

Comments: 9 pages, 10 figures. Text improved

Journal-ref: New Journal of Physics, 10(2008) 033013

Subjects: Statistical Mechanics (cond-mat.stat-mech); Soft Condensed Matter (cond-mat.soft)

5. arXiv:cond-mat/0611749 [ps, pdf, other]

Title: Linear response in aging glassy systems, intermittency and the Poisson statistics of record fluctuations

Authors: Paolo Sibani

Comments: 10 pages, 17 figures. The mproved version now includes a direct analysis of the intermittent signal. The new title is hopefully more informative. Accepted for publication in EPJB

Journal-ref: European Physical Journal B 58 (4): 483-491, 2007

Subjects: Statistical Mechanics (cond-mat.stat-mech); Soft Condensed Matter (cond-mat.soft)

6. arXiv:cond-mat/0604546 [ps, pdf, other]

Title: Aging and intermittency in a p-spin model of a glass

Authors: Paolo Sibani

Comments: 9 pages, 6 figures, europhysics letter style, to appear in Physical Review E

Journal-ref: Physical Review E 74(3), 031115 (2006)

Subjects: Statistical Mechanics (cond-mat.stat-mech); Soft Condensed Matter (cond-mat.soft)

7. arXiv:cond-mat/0601702 [ps, pdf, other]

Title: Intermittent quakes and record dynamics in the thermoremanent magnetization of a spin-glass

Authors: Paolo Sibani, G.F. Rodriguez, G.G. Kenning

Comments: 8 pages, 9 figures. The paper has been expanded and restructured, the figures have been enlarged and improved. Final version, to appear in Phy. Rev. B

Journal-ref: Phys. Rev. B 74, 224407 (2006)

Subjects: Disordered Systems and Neural Networks (cond-mat.dis-nn); Materials Science (cond-mat.mtrl-sci)

8. arXiv:cond-mat/0506173 [ps, pdf, other]

Title: Mesoscopic fluctuations and intermittency in aging dynamics

Authors: Paolo Sibani

Comments: 7 pages 5 figs, several corrections, final version to appear in EuroPhysics Letters

Journal-ref: Europhys. Lett., 73 (1), pp. 69-75 (2006)

Subjects: Soft Condensed Matter (cond-mat.soft)

9. arXiv:cond-mat/0504384 [ps, pdf, other]

Title: Non-equilbrium Dynamics in Amorphous Si_3B_3N_7

Authors: A. Hannemann, J.C. Schön, M.Jansen, P. Sibani

Comments: Journal of Phys. Chem.B in press.Extended version of paper cond-mat/0212245

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn)

10. arXiv:cond-mat/0503108 [ps, pdf, other]

Title: Extremal noise events, intermittency and Log-Poisson statistics in non-equilibrium aging of complex systems

Authors: Paolo Sibani

Comments: 12 pages, 9 figures, to appear in the Proceedings of the third SPIE International Symposium on Fluctuations and Noise, 23-26 May 2005, Austin, Texas

Subjects: Disordered Systems and Neural Networks (cond-mat.dis-nn)

11. arXiv:cond-mat/0411104 [ps, pdf, other]

Title: Record dynamics and the observed temperature plateau in the magnetic creep rate of type II superconductors

Authors: L.P. Oliveira, Henrik Jeldtoft Jensen, Mario Nicodemi, Paolo Sibani

Comments: 7 pages, 5 figures. Replaced in order to correct the order of the Bessel function in Eq. 4

Journal-ref: Phys. Rev. 104526 (2005)

Subjects: Superconductivity (cond-mat.supr-con)

12. arXiv:cond-mat/0406689 [ps, pdf, other]

Title: Evolution in complex systems

Authors: Paul Anderson, Henrik Jeldtoft Jensen, L.P.Oliveira, Paolo Sibani

Comments: 8 pages, 5 figures all in one file

Journal-ref: Complexity Vol. 10, p. 49 (2004)

Subjects: Statistical Mechanics (cond-mat.stat-mech)

13. arXiv:cond-mat/0406614 [ps, pdf, other]

Title: How a spin-glass remembers. Memory and rejuvenation from intermittency data: an analysis of temperature shifts

Authors: Paolo Sibani, Henrik Jeldoft Jensen

Comments: Revised introduction and discussion. Final version to appear in Journal of Statistical Mechanics: Theory and Experiment

Journal-ref: JSTAT(2004)P10013

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn); Soft Condensed Matter (cond-mat.soft)

14. arXiv:cond-mat/0406543 [ps, pdf, other]

Title: Comparing extremal and thermal Explorations of Energy Landscapes

Authors: Stefan Boettcher (Emory U), Paolo Sibani (SDU, Odense)

Comments: RevTex4, 11 pages, 24 postscript figures included, to appear in EPJB; see this http URL for related information

Journal-ref: European Physics Journal B 44, 317-326 (2005).

Subjects: Disordered Systems and Neural Networks (cond-mat.dis-nn)

15. arXiv:cond-mat/0403212 [ps, pdf, other]

Title: Intermittency, aging and record fluctuations

Authors: Paolo Sibani, Henrik Jeldtoft Jensen

Comments: 7 pages, 4 figs Final, extended version to appear in Europhysics Letter

Journal-ref: Europhys.Lett., 69 (4), pp. 563-569 (2005)

Subjects: Soft Condensed Matter (cond-mat.soft); Statistical Mechanics (cond-mat.stat-mech)

16. arXiv:cond-mat/0310416 [ps, pdf, other]

Title: Deviations from Full Aging in Numerical Spin Glass Models

Authors: J. Dall, P. Sibani

Comments: 5 pages, 2 figures

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn)

17. arXiv:cond-mat/0310286 [ps, pdf, other]

Title: The energy landscape of aging systems--from a different angle

Authors: Paolo Sibani, Jesper Dall

Comments: 8 pages, 6 figures. Submitted to Europhys. Lett

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn); Soft Condensed Matter (cond-mat.soft)

18. arXiv:cond-mat/0305468 [ps, pdf, other]

Title: Log-Poisson statistics and full aging in glassy systems

Authors: Paolo Sibani, Jesper Dall

Comments: v3 (final): 8 pages, 4 figures. Minor changes

Journal-ref: Europhys. Lett., 64 (2003) 8-14

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn)

19. arXiv:cond-mat/0302575 [ps, pdf, other]

Title: Exploring Valleys of Aging Systems: The Spin Glass Case

Authors: Jesper Dall, Paolo Sibani

Comments: 16 pages, 7 figures, RevTex v2: Corrections to argument about mean residence time in a valley v3: Corrected version, with updated figures

Journal-ref: Eur.Phys.J.B 36 (2) 233-243 (2003)

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn)

20. arXiv:cond-mat/0212245 [ps, pdf, other]

Title: Non-equilibrium dynamics in amorphous Si3B3N7

Authors: A. Hannemann, J. C. Schon, M. Jansen, P. Sibani

Comments: 4 pages, 4 figures

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn); Materials Science (cond-mat.mtrl-sci)

21. arXiv:cond-mat/0206535 [ps, pdf, other]

Title: Extracting the Landscape and Morphology of Aging Glassy Systems

Authors: Paolo Sibani, Jesper Dall

Comments: 4 pages, 4 figures, RevTex. Minor changes in introduction and references

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn); Soft Condensed Matter (cond-mat.soft)

22. arXiv:cond-mat/0107475 [ps, pdf, other]

Title: Faster Monte Carlo Simulations at Low Temperatures. The Waiting Time Method

Authors: Jesper Dall, Paolo Sibani (SDU-Odense Universitet)

Comments: 14 pages, 5 figures, LaTeX

Journal-ref: Computer Physics Communication 141 (2001) 260-267

Subjects: Statistical Mechanics (cond-mat.stat-mech)

23. arXiv:cond-mat/0011462 [ps, pdf, other]

Title: Aging and SOC in driven dissipative systems

Authors: Paolo Sibani, Christian Maar Andersen

Comments: 4 pages, 5 figures, to appear in PRE

Subjects: Statistical Mechanics (cond-mat.stat-mech); Disordered Systems and Neural Networks (cond-mat.dis-nn)

24. arXiv:cond-mat/9911197 [ps, pdf, other]

Title: Energy and entropy of metastable states in glassy systems

Authors: J. Christian Schoen, P. Sibani

Comments: RevTeX, 7 pages, 3 figures. To appear in Europhysics Letters

Journal-ref: Europhys. Lett., 49 196-202 (2000)

Subjects: Statistical Mechanics (cond-mat.stat-mech)

25. arXiv:cond-mat/9805396 [ps, pdf, other]

Title: Properties of the energy landscape of network models for covalent glasses

Authors: J. Christian Schoen (Dept. of Inorganic Chemistry, Univ. of Bonn, Germany), Paolo Sibani (Physics Dept. Univ. of Odense, Denmark)

Comments: RevTeX, 19 pages, 7 figures

Journal-ref: J. Phys. A: Math. Gen. 31(1998) 8165-8178

Subjects: Statistical Mechanics (cond-mat.stat-mech); Materials Science (cond-mat.mtrl-sci)

26. arXiv:cond-mat/9706232 [ps, pdf, other]

Title: Local state space geometry and thermal metastability in complex landscapes: the spin-glass case

Authors: Paolo Sibani (Fysisk Institut, Odense Universitet)

Comments: 16 pages, 8 figures, RevTeX, to appear in Physica A The figures have been improved and the text somewhat shortened. New references have been added

Subjects: Disordered Systems and Neural Networks (cond-mat.dis-nn); Statistical Mechanics (cond-mat.stat-mech)

27. arXiv:physics/9705026 [ps, pdf, other]

Title: A soluble model of evolution and extinction dynamics in a rugged fitness landscape

Authors: Paolo Sibani

Comments: 6 pages LaTeX source with 2 figures. Submitted to PRL (Jan. 97)

Subjects: Biological Physics (physics.bio-ph); Statistical Mechanics (cond-mat.stat-mech); Quantitative Biology (q-bio)