In July 2014 I awarded funding for a 6-months research project on the `Statistical Physics and Anomalous Dynamics of Foraging' at the Max Planck Institute for the Physics of Complex Systems in Dresden, Germany. Starting from July 2015 a team of 6 scientists, including myself, will work on this topic at MPIPKS Dresden, supported by a vivid visitors programme.
In December 2013 I accepted an invitation by the American Physical Society (APS) to become Divisional Associate Editor for their journal Physical Review Letters (PRL). `Many physicists and other scientists consider PRL one of most prestigious journals in the field of physics', as is confirmed `by various measurement standards, which includes the Journal Citation Reports impact factor and the journal h-index proposed by Google Scholar'. The invitation letter stated: `The APS Division of Condensed Matter Physics and the Topical Group for Statistical and Nonlinear Physics have given their endorsement to ask you to serve. (...) Your expertise in nonequilibrium statistical physics with applications to biology and other fields as well as in dynamical systems, chaos, and complexity would be, we thought, a considerable asset for our Board.' This prestigious service is for three years starting from January 2014.
This book was published as a Special Issue in the series Reviews of Nonlinear Dynamics and Complexity upon invitation by the series editor Prof. H.-G. Schuster. It summarizes recent developments of Small Systems Physics with a focus on fluctuation relations, a key topic in this field over the past 10 years. The book (428 pages) got published by Wiley-VCH in February 2013. Until February 2014 more than 200 copies were sold, and the book was cited more than 6 times (according to Web of Science) / more than 15 times (Google Scholar). Please see the book's homepage for further details.
In June 2012 I became director of the PhD programme at the School of Mathematical Sciences, Queen Mary University of London. In this function I was joining the Head of School Advisory Group, which assists the Head of School in decision-making about the School. I am now responsible for managing our whole PhD programme with about 60 PhD students and 45 academic staff members. This includes in particular acquiring money for PhD studentships: I was successful with awarding 5 PhD studentships from the College in 2012 and 2013, based on proposals that were assessed competitively (about 230k each). I was also awarded a grant from the EPSRC for PhD studentships in 2012, again based on a proposal for the School (about 210k).
PhD student Friedrich Lenz performed a statistical analysis of flight paths of bumblebees foraging in a laboratory experiment carried out by Tom Ings and Lars Chittka, School of Biological and Chemical Sciences, Queen Mary University of London. The bumblebees were searching for nectar in a patch of artificial flowers both without predation risk and under predation thread by artificial spiders randomly distributed on the flowers. We found that, surprisingly, the probability distribution of velocities did not change under predation risk. All the changes were contained in the velocity correlation functions quantifying the temporal changes of the velocities along trajectories. Our result has to be seen within the context of the ongoing debate about optimal foraging theories, where correlation functions have so far not really been appreciated.
Our results have been published in the international top journal Physical Review Letters, highlighted therein as an Editor's Suggestion.
They were furthermore highlighted by a synopsis in the journal Physics of the American Physical Society.

some international press coverage of this research:
reference:
F.Lenz, T.Ings, A.V.Chechkin, L.Chittka, R.Klages, Spatio-temporal dynamics of bumblebees foraging under predation risk, Phys. Rev. Lett. 108, 098103/1--5 (2012)

This international conference, for which full funding was awarded from the Max Planck Society, took place at the MPIPKS Dresden in July/August 2011 for a duration of 3 weeks. The aim was to particularly bring together mathematicians and theoretical physicists working on the conference topic. An overwhelming number of applications was received. Together with R.Zweimueller (Surrey), E.Barkai (Bar-Ilan) and H.Kantz (Dresden) I have been organizing this event as the main organizer.
I received an Outstanding Referee Award 2010 from the American Physical Society honouring my work as a referee for the Physical Review journals. I furthermore accepted invitations to join the British EPSRC Peer Review College in Spring 2010, and to become assessor for the Australian Research Council in Autumn 2013.
Because of the big success of an international conference on anomalous transport, please see below, we organizers decided to edit a multi-author reference book on the very same topic, as an introduction to this important, very active field of research. The book (584 pages) got published by Wiley-VCH in July 2008. Until March 2014 more than 265 copies were sold, and the book was cited more than 140 times (according to Web of Science) / more than 190 times (Google Scholar). It thus quickly developed into a standard reference for this whole field. Please see the book's homepage for further details.
In an interdisciplinary collaboration with Peter Dieterich, TU Dresden, A. Schwab, University of Muenster, and R. Preuss, MPI for Plasma Physics, Garching, we showed that biological cells can exhibit a very interesting dynamical behavior: Isolated single cells were put on substrates on which they crawl (with a remote similarly to `caterpillars'). Recording their trajectories with a video camera, the experimental data matches nicely to statistical predictions of a specific theoretical model (a so-called fractional Klein-Kramers equation), which describes a transition from sub- to superdiffusive behavior as time increases. That is, the cell's dynamics is very different from ordinary Brownian motion.
These results have been published as an article in the international top journal Proceedings of the National Academy of Sciences in January 2008; see PNAS 105, 459--463 (2008). This article was already cited about 90 times (Web of Science) / 110 times (Google Scholar) since then.
See the Dresdner Universitaetsjournal 12/2008, p.6 for a short popular science account of our findings.
In 2003 I completed a 300-page summary of my research performed over the previous years. This work got accepted as my Habilitation Thesis at the TU Dresden. An updated and considerably amended 460 page version got published in June 2007 as a book in the Advanced Series in Nonlinear Dynamics, World Scientific, Vol.24. Until March 2014 more than 370 copies were sold, and the book was cited about 50 times (Web of Science) / more than 80 times (Google Scholar). Please see the book's homepage for further details.
In September 2006 I awarded a research grant from the British EPSRC council. With this grant (250,000) I partially funded my own post for two years, I received travel money, money for computers and money for inviting collaborators. The grant included a 2-year postdoc position.
EPSRC logo
This very interdisciplinary international conference, for which full funding was awarded from the Heraeus Foundation, took place at the Physikzentrum Bad Honnef in July 2006 for a duration of 4 days. The meeting involved about 70 international participants from 17 different countries. Together with G.Radons (Chemnitz) and I.M.Sokolov (Berlin) I have been organizing this event as the main organizer. See also the multi-author reference book related to this conference.
This international conference, for which full funding was awarded from the Max Planck Society, took place at the MPIPKS Dresden in August 2002 for a duration of 3 weeks. It involved about 90 participants from 22 different countries. Together with P.Gaspard (Brussels), H.van Beijeren (Utrecht) and J.R.Dorfman (College Park) I have been organizing this event as the main organizer. All of us were serving as guest editors at the International scientific journal Physica D for the accompanying 400-page Special Issue.
During my Ph.D. thesis work I discovered the phenomenon that diffusion coefficients can be fractal functions of control parameters. At first view this finding appears to be counter-intuitive, since usually one expects physical quantities to change smoothly under parameter variation as, for example, in Ohm's law.
Subsequently it was shown by colleagues, coworkers and myself that this behavior is quite typical not only for diffusion but also for other types of transport coefficients (e.g., electrical conductivities, chemical reaction rates) characterizing transport in low-dimensional deterministic dynamical systems exhibiting spatial periodicities. This class of systems thus exhibits properties that are at the borderline of traditional statistical physics revealing fingerprints of an underlying microscopic deterministic dynamics.
Physical systems of this class being accessible in experiments are, for example, semiconductor devices like antidots and Josephson junctions, certain types of ratchets, and corrugated vibratory conveyors, the latter frequently being used in industrial applications for transporting granular entities. For all these systems there are theoretical predictions of fractal, or at least highly irregular, parameter dependencies of physical transport properties. Although hints on experimental observations of such irregularities already exist in the literature, it still remains to clearly match theory with experiments at this point.

some accounts of this finding in textbooks:
reference:
R.Klages, J.R.Dorfman, Simple maps with fractal diffusion coefficients, Phys. Rev. Lett. 74, 387-390 (1995)
This paper was cited more than 70 times after its publication (Web of Science) / more than 110 times (Google Scholar).