Dr.rer.nat.habil., Dipl.-Phys.
Research
dynamical systems, nonequilibrium statistical physics, stochastic theory, movement ecology, complex systems, nonlinear dynamics and chaos
Interests
My research combines dynamical systems theory, nonequilibrium statistical physics and stochastic theory to understand complex systems, with applications to nanoscience and especially to biology. I am interested in the emergence of fractal structures in chaotic transport processes such as diffusion. More recently I started to apply the theory of anomalous stochastic processes to explain the foraging of biological organisms. Examples are stochastic models of biological cell migration, bumblebee flights and swimming sea turtles. My research in theoretical physics and applied mathematics thus stretches from mathematical foundations to experimental applications.
Publications
![Relevant Publication](/common/publications/images/fav.png)
Publications of specific relevance to the Centre for Complex Systems
2024
![Relevant Publication](/common/publications/images/fav.png)
Yan J, Majumdar M, Ruffo S, Sato Y,
Beck C and
Klages R (2024).
Transition to anomalous dynamics in a simple random map. Chaos An Interdisciplinary Journal of Nonlinear Science,
AIP Publishing vol. 34 (2)
01-02-20242023
Klages R (2023).
Search for Food of Birds, Fish, and Insects. Diffusive Spreading in Nature, Technology and Society 53-74.
01-01-20232022
![Relevant Publication](/common/publications/images/fav.png)
Khadem M,
Klages R and Klapp S (2022).
Stochastic thermodynamics of fractional Brownian motion. Physical Review Research,
American Physical Society 13-12-2022![Relevant Publication](/common/publications/images/fav.png)
Giona M, Cairoli A and
Klages R (2022).
In the folds of the Central Limit Theorem: Lévy walks, large deviations and higher-order anomalous diffusion. Journal of Physics A: Mathematical and Theoretical vol. 55, 475002-475002.
30-11-2022![Relevant Publication](/common/publications/images/fav.png)
Dieterich P, Lindemann O, Moskopp ML, Tauzin S, Huttenlocher A,
Klages R, Chechkin A and Schwab A (2022).
Anomalous diffusion and asymmetric tempering memory in neutrophil chemotaxis. PLoS Computational Biology,
Public Library of Science vol. 18 (5), e1010089-e1010089.
18-05-2022![Relevant Publication](/common/publications/images/fav.png)
Giona M, Cairoli A and
Klages R (2022).
Extended Poisson-Kac Theory: A Unifying Framework for Stochastic Processes with Finite Propagation Velocity. Physical Review X vol. 12 (2), 021004-021004.
06-04-2022![Relevant Publication](/common/publications/images/fav.png)
Giona M, Cairoli A, Cocco D and
Klages R (2022).
Spectral Properties of Stochastic Processes Possessing Finite Propagation Velocity., Editors: Taloni A.
Entropy: international and interdisciplinary journal of entropy and information studies,
MDPI AG vol. 24 (2), 201-201.
28-01-20222021
![Relevant Publication](/common/publications/images/fav.png)
Khadem SMJ, Klapp SHL and
Klages R (2021).
Search efficiency of discrete fractional Brownian motion in a random distribution of targets. Physical Review Research,
American Physical Society (APS) vol. 3 (2)
02-06-2021![Relevant Publication](/common/publications/images/fav.png)
Watkins NW, Chapman SC, Chechkin A, Ford I,
Klages R and Stainforth DA (2021).
On Generalized Langevin Dynamics and the Modelling of Global Mean Temperature. Unifying Themes in Complex Systems X 433-441.
01-01-20212019
![Relevant Publication](/common/publications/images/fav.png)
Palyulin VV, Blackburn G, Lomholt MA, Watkins NW, Metzler R,
Klages R and Chechkin AV (2019).
First passage and first hitting times of Lévy flights and Lévy walks. New Journal of Physics,
IOP Publishing vol. 21 (10), 103028-103028.
11-10-2019![Relevant Publication](/common/publications/images/fav.png)
Giona M, D’Ovidio M, Cocco D, Cairoli A and
Klages R (2019).
Age representation of Lévy walks: partial density waves, relaxation and first passage time statistics. Journal of Physics A: Mathematical and Theoretical,
IOP Publishing vol. 52 (38), 384001-384001.
27-08-2019![Relevant Publication](/common/publications/images/fav.png)
GIL GALLEGOS S,
Klages R, Räsänen E and Solanpää J (2019).
Energy-dependent diffusion in a soft periodic Lorentz gas. European Physical Journal - Special Topics,
EDP Sciences vol. 228, 143-160.
30-05-2019![Relevant Publication](/common/publications/images/fav.png)
Sato Y and
Klages R (2019).
Anomalous Diffusion in Random Dynamical Systems. Physical Review Letters,
American Physical Society (APS) vol. 122 (17), 1-6.
29-04-2019
KLAGES RG, Gallegos SSG, Solanpaa J and Rasanen E (2019).
Normal and anomalous diffusion in soft Lorentz gases. Physical Review Letters,
American Physical Society vol. 122, 064102-064102.
14-02-20192018
![Relevant Publication](/common/publications/images/fav.png)
CAIROLI A,
KLAGES R and
BAULE A (2018).
Weak Galilean invariance as a selection principle for coarse-grained diffusive models. Proceedings of the National Academy of Sciences,
National Academy of Sciences 14-05-2018
KLAGES R (2018).
Search for food of birds, fish and insects. Diffusive Spreading in Nature, Technology and Society , Editors: Bunde A. 49-69.
31-01-20182017
KLAGES RG, Nava-Sedeno JM, Hatzikirou H and Deutsch A (2017).
Cellular automaton models for time-correlated random walks: derivation and analysis. Scientific Reports,
Nature Publishing Group vol. 7
05-12-2017![Relevant Publication](/common/publications/images/fav.png)
Palyulin VV, Mantsevich VN,
KLAGES RG, Metzler R and Chechkin AV (2017).
Comparison of pure and combined search strategies for single and multiple targets. European Physical Journal B: Condensed Matter and Complex Systems,
EDP Sciences 13-09-2017![Relevant Publication](/common/publications/images/fav.png)
Dieterich P, Lindemann O, Moskopp ML, Tauzin S, Huttenlocher A,
Klages R, Chechkin A and Schwab A (2017).
Asymmetric anomalous diffusion of chemotacting neutrophils. 01-01-20172016
Klages R (2016).
Chaos in Statistical Physics. Dynamical and Complex Systems 1-40.
26-12-2016![Relevant Publication](/common/publications/images/fav.png)
Palyulin VV,
KLAGES RG, Chechkin AV and Metzler R (2016).
Search reliability and search efficiency of combined Lévy–Brownian motion: long relocations mingled with thorough local exploration. Journal of Physics A: Mathematical and Theoretical,
IOP Publishing: Hybrid Open Access vol. 49 (39), 394002-394002.
08-09-2016![Relevant Publication](/common/publications/images/fav.png)
Taylor-King JP,
KLAGES R, Van Gorder RA and Fedotov S (2016).
A Fractional Diffusion Equation for an n-Dimensional Correlated Levy Walk. Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics vol. 94, 012104-012104.
06-07-20162015
KLAGES RG (2015).
Extrem gesucht. Physik Journal,
Wiley-VCH Verlag vol. 14 (12), 22-23.
01-12-2015![Relevant Publication](/common/publications/images/fav.png)
Salari L, Rondoni L, Giberti C and
Klages R (2015).
A simple non-chaotic map generating subdiffusive, diffusive and
superdiffusive dynamics. Chaos vol. 25
14-07-2015![Relevant Publication](/common/publications/images/fav.png)
Dieterich P,
Klages R and Chechkin AV (2015).
Fluctuation relations for anomalous dynamics generated by time-fractional Fokker–Planck equations. New Journal of Physics,
IOP Publishing vol. 17 (7)
01-07-20152014
![Relevant Publication](/common/publications/images/fav.png)
Rodrigues CS, Chechkin AV, de Moura APS, Grebogi C and
Klages R (2014).
Diffusion in randomly perturbed dissipative dynamics. EPL (Europhysics Letters),
IOP Publishing vol. 108 (4)
01-11-20142013
Klages R (2013).
Nonequilibrium Statistical Physics of Small Systems - Fluctuation Relations and Beyond., Editors: Klages R, Just W and Jarzynski C.
08-03-2013
KLAGES RG (2013).
Weak chaos, infinite ergodic theory, and anomalous dynamics. From Hamiltonian Chaos to Complex Systems , Editors: Leoncini X and Leonetti M. 3-42.
01-01-2013
KLAGES RG, Wolfram J, Jarzynski C and Schuster HG (2013).
Anomalous fluctuation relations. Nonequilibrium Statistical Physics of Small Systems: Fluctuation Relations and Beyond , Editors: Schuster HG.
01-01-2013![Relevant Publication](/common/publications/images/fav.png)
Lenz F, Chechkin AV and
Klages R (2013).
Constructing a stochastic model of bumblebee flights from experimental data. PLoS One,
PloS vol. 8 (3), e59036-e59043.
01-01-20132012
![Relevant Publication](/common/publications/images/fav.png)
Chechkin AV, Lenz F and
Klages R (2012).
Normal and anomalous fluctuation relations for Gaussian stochastic dynamics. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT,
IOP PUblishing vol. 2012
01-11-2012![Relevant Publication](/common/publications/images/fav.png)
Knight G, Georgiou O, Dettmann CP and
Klages R (2012).
Dependence of chaotic diffusion on the size and position of holes. Chaos,
AIP Publishing vol. 22 (2), 023132-123144.
01-06-2012![Relevant Publication](/common/publications/images/fav.png)
Lenz F, Ings TC,
Chittka L, Chechkin AV and
Klages R (2012).
Spatiotemporal Dynamics of Bumblebees Foraging under Predation Risk. PHYSICAL REVIEW LETTERS,
American Physical Society vol. 108 (9), 098103-098108.
01-03-2012![Relevant Publication](/common/publications/images/fav.png)
Waldner F and
Klages R (2012).
Symmetric Jacobian for local Lyapunov exponents and Lyapunov stability analysis revisited. CHAOS SOLITONS & FRACTALS,
Elsevier/Science Direct vol. 45 (3), 325-340.
01-03-20122011
Klages R and Knight G (2011).
Reply to the comment of T.Gilbert and D.P.Sanders on Capturing
correlations in chaotic diffusion by approximation methods. 16-12-2011![Relevant Publication](/common/publications/images/fav.png)
Knight G and
Klages R (2011).
Capturing correlations in chaotic diffusion by approximation methods. PHYS REV E,
American Physical Society vol. 84 (4), 041135-041146.
25-10-2011![Relevant Publication](/common/publications/images/fav.png)
Colangeli M,
Klages R, De Gregorio P and Rondoni L (2011).
Steady state fluctuation relations and time reversibility for non-smooth chaotic maps. J STAT MECH-THEORY E,
IOP PUblishing vol. 2011, p04021-p04044.
01-04-2011
KLAGES RG (2011).
Chaos -- The Science of Predictable Random Motion. Physik Journal vol. 10, 48-48.
01-01-2011![Relevant Publication](/common/publications/images/fav.png)
Knight G and
Klages R (2011).
Linear and fractal diffusion coefficients in a family of one-dimensional chaotic maps. NONLINEARITY,
IOP PUblishing vol. 24 (1), 227-241.
01-01-20112010
Klages R (2010).
From Deterministic Chaos to Anomalous Diffusion. Reviews of Nonlinear Dynamics and Complexity 169-227.
10-03-2010
KLAGES RG (2010).
From deterministic chaos to anomalous diffusion. Reviews of nonlinear dynamics and complexity 01-01-2010
Klages R, Radons G and Sokolov IM (2010).
Anomalous Transport: Experimental Results and Theoretical Challenges. Physik Journal vol. 5 (10), 63-63.
01-01-20102009
![Relevant Publication](/common/publications/images/fav.png)
Chechkin AV and
Klages R (2009).
Fluctuation relations for anomalous dynamics. J STAT MECH-THEORY E,
IOP PUblishing vol. 2009, L03002-L03014.
01-03-20092008
Klages R, Radons G and Sokolov IM (2008).
Preface. 30-09-2008![Relevant Publication](/common/publications/images/fav.png)
Keller G, Howard PJ and
Klages R (2008).
Continuity properties of transport coefficients in simple maps. NONLINEARITY,
IOP PUblishing vol. 21 (8), 1719-1743.
01-08-2008![Relevant Publication](/common/publications/images/fav.png)
Dieterich P,
Klages R, Preuss R and Schwab A (2008).
Anomalous dynamics of cell migration. Proc Natl Acad Sci U S A,
United States National Academy of Sciences vol. 105 (2), 459-463.
15-01-2008
Klages R (2008).
Anomalous transport - Foundations and Applications., Editors: Klages R, Radons G and Sokolov IM.
01-01-20082007
Klages R (2007).
Chaos: A Very Short Introduction. Journal of Physics A: Mathematical and Theoretical,
IOP Publishing vol. 40 (29)
03-07-2007![Relevant Publication](/common/publications/images/fav.png)
Korabel N,
Klages R, Chechkin AV, Sokolov IM and Gonchar VY (2007).
Fractal properties of anomalous diffusion in intermittent maps. Phys Rev E Stat Nonlin Soft Matter Phys vol. 75 (3 Pt 2)
01-03-2007
KLAGES RG (2007).
Chaos -- A very short introduction. Physik Journal vol. 6, 72-72.
01-01-2007
KLAGES RG (2007).
Microscopic Chaos, Fractals and Transport in Nonequilibrium Statistical Mechanics. 01-01-20072005
![Relevant Publication](/common/publications/images/fav.png)
Korabel N, Chechkin AV,
Klages R, Sokolov IM and Gonchar VY (2005).
Understanding anomalous transport in intermittent maps: From continuous-time random walks to fractals. EUROPHYS LETT vol. 70 (1), 63-69.
01-04-2005
KLAGES RG, Schwab A, Stock C, Dreval V, Preuss R and Dieterich P (2005).
Brownian motion of migrating cells?, in: E.Schoell, K.Luedge (Eds.), XXV. Dynamics Days Europe 2005: Book of Abstracts. Europhysics Conference.
01-01-2005
KLAGES RG (2005).
Deterministic chaos and diffusion: from theory to experiment. Diffusion Fundamentals, Leipziger Universitaetsverlag, Leipzig.
01-01-20052004
Klages R, Barna IF and Matyas L (2004).
Spiral modes in the diffusion of a single granular particle on a vibrating surface. PHYS LETT A vol. 333 (1-2), 79-84.
29-11-2004![Relevant Publication](/common/publications/images/fav.png)
Korabel N and
Klages R (2004).
Fractality of deterministic diffusion in the nonhyperbolic climbing sine map. Physica D-Nonlinear Phenomena vol. 187 (1-4), 66-88.
01-01-2004![Relevant Publication](/common/publications/images/fav.png)
Korabel N and
Klages R (2004).
Deterministic diffusion in smooth nonlinear maps., Editors: Klonowski W. 317-324.
01-01-2004
KLAGES RG, Gaspard P, van Beijeren H and Dorfman JR (2004).
Special issue on Microscopic Chaos and Transport in Many-Particle Systems. 01-01-2004![Relevant Publication](/common/publications/images/fav.png)
Matyas L and
Klages R (2004).
Irregular diffusion in the bouncing ball billiard. PHYSICA D-NONLINEAR PHENOMENA vol. 187 (1-4), 165-183.
01-01-2004
Klages R, van Beijeren H, Gaspard P and Dorfman JR (2004).
Microscopic chaos and transport in many-particle systems - Preface. PHYSICA D vol. 187 (1-4), 1-2.
01-01-20042003
Klages R (2003).
Microscopic chaos and transport in thermostated dynamical systems. published as Part 2 in: R.Klages, Microscopic Chaos, Fractals and
Transport in Nonequilibrium Statistical Mechanics (Advanced Series in
Nonlinear Dynamics Vol.24, World Scientific, Singapore, 2007, ISBN
978-981-256-507-5) 26-09-2003
Klages R and Klauss T (2003).
Fractal fractal dimensions of deterministic transport coefficients. J PHYS A-MATH GEN vol. 36 (21), 5747-5764.
30-05-2003
KLAGES RG (2003).
Irregular diffusion in the bouncing ball billiard. Dresden Technical University, Dresden, Germany Verhandl. DPG (VI) 38.
01-01-2003
KLAGES RG and Korabel N (2003).
Fractality of deterministic diffusion in nonhyperbolic maps. Dresden Technical University, Dresden, Germany Verhandl. DPG (VI) 38.
01-01-2003
KLAGES RG (2003).
Transitions from deterministic to stochastic diffusion. Dresden Technical University, Dresden, Germany Verhandl. DPG (VI) 38.
01-01-20032002
![Relevant Publication](/common/publications/images/fav.png)
Korabel N and
Klages R (2002).
Fractal structures of normal and anomalous diffusion in nonlinear nonhyperbolic dynamical systems. PHYS REV LETT vol. 89 (21)
18-11-2002![Relevant Publication](/common/publications/images/fav.png)
Groeneveld J and
Klages R (2002).
Negative and nonlinear response in an exactly solved dynamical model of particle transport. J STAT PHYS vol. 109 (3-4), 821-861.
01-11-2002![Relevant Publication](/common/publications/images/fav.png)
Harayama T,
Klages R and Gaspard P (2002).
Deterministic diffusion in flower-shaped billiards. PHYS REV E vol. 66 (2)
01-08-2002
Klages R (2002).
Comment on Analysis of chaotic motion and its shape dependence in a generalized piecewise linear map. PHYS REV E vol. 66 (1)
01-07-2002
Klages R and Korabel N (2002).
Understanding deterministic diffusion by correlated random walks. J PHYS A-MATH GEN vol. 35 (23), 4823-4836.
14-06-2002
Klages R (2002).
Suppression and enhancement of diffusion in disordered dynamical systems. Phys Rev E Stat Nonlin Soft Matter Phys vol. 65 (5 Pt 2)
01-05-2002
Klages R (2002).
Transitions from deterministic to stochastic diffusion. 01-03-2002![Relevant Publication](/common/publications/images/fav.png)
Rateitschak K and
Klages R (2002).
Lyapunov instability for a periodic Lorentz gas thermostated by deterministic scattering. PHYS REV E vol. 65 (3)
01-03-2002
KLAGES RG and Klages R (2002).
Transitions from deterministic to stochastic diffusion. Europhys. Lett. vol. 57, 796-802.
01-01-2002
Klages R and Korabel N (2002).
Understanding deterministic diffusion by correlated random walks. J. Phys. A: Math. Gen. vol. 35, 4823-4836.
01-01-2002![Relevant Publication](/common/publications/images/fav.png)
Korabel N and
Klages R (2002).
Fractal Structures of Normal and Anomalous Diffusion in Nonlinear Nonhyperbolic Dynamical Systems. Physical Review Letters vol. 89 (21)
01-01-2002
KLAGES RG (2002).
Suppression and enhancement of deterministic diffusion in disordered dynamical systems. Phys. Rev. E vol. 65, 1-4.
01-01-20022001
KLAGES RG (2001).
Zufallsbewegung und deterministische Diffusion im periodischen Lorentzgas. University of Hamburg, Hamburg, Germany Verhandl. DPG (VI) 38.
01-01-20012000
Klages R and Dellago C (2000).
Density-dependent diffusion in the periodic Lorentz gas. 01-10-2000![Relevant Publication](/common/publications/images/fav.png)
Rateitschak K,
Klages R and Hoover WG (2000).
The Nose-Hoover thermostated Lorentz gas. 01-10-2000
Klages R, Rateitschak K and Nicolis G (2000).
Thermostating by Deterministic Scattering: Construction of Nonequilibrium Steady States. Physical Review Letters,
American Physical Society (APS) vol. 84 (19), 4268-4271.
08-05-2000![Relevant Publication](/common/publications/images/fav.png)
Rateitschak K,
KLAGES RG and Nicolis G (2000).
Thermostating by deterministic scattering: the periodic Lorentz gas. J. Stat. Phys. vol. 99, 1339-1364.
01-01-2000![Relevant Publication](/common/publications/images/fav.png)
Rateitschak K,
KLAGES RG and Hoover WG (2000).
The Nosé-Hoover thermostated Lorentz gas. J. Stat. Phys. vol. 101, 61-77.
01-01-2000
KLAGES RG, Rateitschak K and Nicolis G (2000).
Thermostating by deterministic scattering: Construction of Nonequilibrium Steady States. Phys. Rev. Lett. vol. 84, 4268-4271.
01-01-2000
KLAGES RG and Dellago C (2000).
Density-dependent diffusion in the periodic Lorentz gas. J. Stat. Phys. vol. 101, 145-159.
01-01-20001999
![Relevant Publication](/common/publications/images/fav.png)
Wagner C,
KLAGES RG and Nicolis G (1999).
Thermostating by deterministic scattering: heat and shear flow. Phys. Rev. E vol. 60, 1401-1411.
01-01-1999
KLAGES RG and Dorfman JR (1999).
Simple deterministic dynamical systems with fractal diffusion coefficients. Phys. Rev. E vol. 59, 5361-5383.
01-01-19991998
![Relevant Publication](/common/publications/images/fav.png)
Gaspard P and
KLAGES RG (1998).
Chaotic and fractal properties of deterministic diffusion-reaction processes. Chaos vol. 8, 409-423.
01-01-19981997
KLAGES RG and Dorfman JR (1997).
Dynamical crossover in deterministic diffusion. Phys. Rev. E vol. 55, R1247-R1250.
01-01-19971996
Klages R and Dorfman JR (1996).
Backscattering-Induced Crossover in Deterministic Diffusion. Published to ArXiv.org 07-07-1996
KLAGES R (1996).
Deterministic Diffusion in One-Dimensional Chaotic Dynamical Systems. 01-01-19961995
KLAGES RG and Dorfman JR (1995).
Simple maps with fractal diffusion coefficients. Phys. Rev. Lett. vol. 74, 387-390.
01-01-1995